WO2023209761A1 - Anti-caking agent composition for fertilizer - Google Patents
Anti-caking agent composition for fertilizer Download PDFInfo
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- WO2023209761A1 WO2023209761A1 PCT/JP2022/018692 JP2022018692W WO2023209761A1 WO 2023209761 A1 WO2023209761 A1 WO 2023209761A1 JP 2022018692 W JP2022018692 W JP 2022018692W WO 2023209761 A1 WO2023209761 A1 WO 2023209761A1
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- Prior art keywords
- component
- fertilizer
- agent composition
- caking agent
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 216
- 239000000203 mixture Substances 0.000 title claims abstract description 120
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 75
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- 238000000034 method Methods 0.000 claims description 20
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- 238000000576 coating method Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 13
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- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- XZTJQQLJJCXOLP-UHFFFAOYSA-M sodium;decyl sulfate Chemical compound [Na+].CCCCCCCCCCOS([O-])(=O)=O XZTJQQLJJCXOLP-UHFFFAOYSA-M 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002426 superphosphate Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- RJSZFSOFYVMDIC-UHFFFAOYSA-N tert-butyl n,n-dimethylcarbamate Chemical compound CN(C)C(=O)OC(C)(C)C RJSZFSOFYVMDIC-UHFFFAOYSA-N 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/30—Anti-agglomerating additives; Anti-solidifying additives
Definitions
- the present invention relates to an anti-caking agent composition for fertilizer, a fertilizer composition, a method for producing a fertilizer composition, and a method for preventing caking of fertilizer components.
- Granular fertilizer components such as chemical fertilizers have a problem of caking due to moisture in the product.
- chemical fertilizers recrystallization of the dissolved fertilizer solution after absorbing moisture is thought to be the cause of caking.
- various methods for preventing caking have been proposed, such as the use of coating materials and improvements in the granulation process.
- caking prevention method that can be applied to fertilizer components that have simple manufacturing processes and low manufacturing costs without sacrificing their economic and commercial advantages.
- JP-A No. 62-275084 discloses a method that contains a water-insoluble synthetic polymer compound such as polyvinyl acetic acid, a specific anionic surfactant such as sodium octyl sulfate, and a wet spreading fixing agent such as polyvinyl alcohol.
- An anti-caking agent for fertilizers is disclosed.
- Japanese Patent Publication No. 49-17827 discloses that an aqueous solution containing a non-dissociable water-soluble polymer compound such as polyvinyl alcohol or sodium polyacrylate and a specific anionic surfactant such as sodium decyl sulfate or sodium octyl sulfate is solidified.
- a method for preventing caking of a caking fertilizer which is characterized by adding the compound to a caking fertilizer and substantially removing water after the addition.
- Japanese Patent Publication No. 49-17104 discloses that an aqueous solution obtained by solubilizing a water-insoluble synthetic polymer compound such as polyvinyl acetate with a concentrated aqueous solution containing an alkyl sulfate having an alkyl group having 6 to 10 carbon atoms is A method for preventing caking of a caking fertilizer is disclosed, which comprises adding the compound to the caking fertilizer either diluted or as is, and substantially removing water after addition.
- the present invention provides an anti-caking agent composition for fertilizers that has good storage stability and prevents caking of fertilizer components with caking properties, and a fertilizer composition with reduced caking properties of fertilizer components. , a method for producing the same, and a method for preventing caking of fertilizer components.
- the present invention relates to an anti-caking agent composition for fertilizer containing the following components (a), (b), and (c).
- the present invention also relates to a fertilizer composition containing the anti-caking agent composition for fertilizers of the present invention and fertilizer components.
- the present invention also relates to a method for producing a fertilizer composition, in which the surfaces of particles of fertilizer components are coated with the anti-caking agent composition for fertilizers of the present invention.
- the present invention also relates to a method for preventing caking of fertilizer components, which comprises coating the surfaces of particles of fertilizer components with the anti-caking agent composition for fertilizers of the present invention.
- an anti-caking agent composition for fertilizers that has good storage stability and prevents caking of fertilizer components with caking properties, a fertilizer composition with reduced caking properties of fertilizer components, A method for manufacturing the same, and a method for preventing caking of fertilizer components are provided.
- the anti-caking agent composition for fertilizers of the present invention is able to prevent caking of fertilizer components having caking properties is not necessarily certain, but it is presumed as follows.
- the anionic surfactant of component (a) adsorbs onto the surface of the fertilizer, thereby making the surface of the fertilizer hydrophobic. It is thought that this makes it difficult for water to act on the fertilizer surface.
- the specific polymer of component (b) exhibits anti-caking properties by forming a thin polymer film on the fertilizer surface, thereby suppressing the action of water on the fertilizer surface and contact between fertilizer particles. Presumed.
- component (c) component (c1) dimethylalkylamine is presumed to adsorb onto the fertilizer surface, making the fertilizer surface hydrophobic and reducing the action of water, similar to component (a).
- component (c) the specific polyhydric alcohol of component (c2) exhibits an anti-caking effect by reducing the amount of water acting on the fertilizer surface by capturing moisture itself. Presumed.
- these components (a), (b), and (c) act complementary to each other on the surface of the fertilizer, resulting in a synergistic anti-caking effect, and the effects of the present invention were obtained. considered to be a thing.
- Component (a) of the present invention is an anionic surfactant.
- Component (a) includes one or more selected from alkyl or alkenyl sulfates, alkanesulfonic acids, olefinsulfonic acids, fatty acids, and salts thereof.
- the salt of component (a) may be, for example, an alkali metal salt such as a sodium salt or potassium salt, or an ammonium salt.
- Component (a) is preferably an alkyl or alkenyl sulfate or a salt thereof, more preferably an alkyl or alkenyl sulfate having 6 or more and 18 or less carbon atoms or a salt thereof, from the viewpoint of anti-caking properties of the fertilizer.
- the number of carbon atoms is the number of carbon atoms in an alkyl group or an alkenyl group.
- the alkyl group or alkenyl group has a carbon number of 6 or more, preferably 8 or more, more preferably 10 or more, and 18 or less, preferably 16 or less, more preferably 14 or less. and is linear or branched, preferably linear.
- the carbon of the alkyl group or alkenyl group bonded to the sulfate ester group is preferably primary carbon from the viewpoint of formulation stability of the anti-caking agent composition for fertilizer.
- component (a) is preferably, for example, lauryl sulfate having 12 carbon atoms or a salt thereof.
- Component (b) of the present invention is one or more selected from a copolymer of styrene and acrylic ester (hereinafter referred to as component (b1)) and polyvinyl acetate (hereinafter referred to as component (b2)).
- the constituent monomer styrene includes one or more selected from styrene, methylstyrene, dimethylstyrene, trimethylstyrene, butylstyrene, acetoxystyrene, and methoxystyrene.
- Styrene is preferred from the viewpoint of anti-caking properties of fertilizers.
- the number of carbon atoms in the ester moiety of the acrylic ester as a constituent monomer is preferably 2 or more, more preferably 7 or more, still more preferably 9 or more, from the viewpoint of anti-caking properties of the fertilizer, and Preferably it is 17 or less, more preferably 15 or less, still more preferably 13 or less.
- the number of carbon atoms in the ester moiety is the number of carbon atoms including the carbon in -C(O)-O-R 1b (R 1b is a hydrocarbon group) and -C(O)-O-.
- R 1b is a hydrocarbon group, preferably a straight-chain or branched alkyl group or a straight-chain or branched alkenyl group, more preferably a straight-chain or branched alkenyl group, from the viewpoint of anti-caking properties of fertilizers. It is an alkyl group, more preferably a branched alkyl group.
- the acrylic ester as a constituent monomer includes one or more selected from 2-ethylhexyl acrylate, n-octyl acrylate, and dodecyl acrylate.
- the molar ratio of the constituent monomers styrene and acrylic ester is preferably 0.6 or more, more preferably 0.6 from the viewpoint of anti-caking properties of the fertilizer. It is 7 or more, more preferably 0.75 or more, and preferably 2.0 or less, more preferably 1.5 or less, even more preferably 1.0 or less, and even more preferably 0.9 or less.
- Component (b1) may be a copolymer containing a monomer other than styrene and acrylic ester and copolymerizable with styrene and/or acrylic ester, as long as it does not impede the effects of the present invention.
- Monomers other than styrene and acrylic esters that can be copolymerized with styrene and/or acrylic esters include vinyl monomers, acrylic monomers, and the like.
- the total amount of styrene and acrylic acid ester in all constituent monomers is preferably 60 mol% or more, more preferably 70 mol% or more, still more preferably 80 mol% or more, from the viewpoint of anti-caking properties of the fertilizer. It is mol% or more, more preferably 90 mol% or more, and preferably 100 mol% or less, and may be 100 mol%.
- the weight average molecular weight of component (b1) is preferably 50,000 or more, more preferably 100,000 or more, even more preferably 200,000 or more, and preferably 1,000,000 from the viewpoint of anti-caking property. It is more preferably 800,000 or less, still more preferably 400,000 or less.
- the weight average molecular weight of component (b1) is determined by gel permeation chromatography (GPC) using a mixed solution of acetonitrile and water (phosphate buffer) as a developing solvent and polyethylene glycol as a standard.
- Component (b2) may be a copolymer containing a monomer other than vinyl acetate and copolymerizable with vinyl acetate, as long as the effects of the present invention are not impaired.
- Monomers other than vinyl acetate that can be copolymerized with vinyl acetate include vinyl monomers, acrylic monomers, styrene monomers, and the like.
- the content of vinyl acetate in all constituent monomers is preferably 60 mol% or more, more preferably 70 mol% or more, still more preferably 80 mol% or more, from the viewpoint of anti-caking properties of the fertilizer. , more preferably 90 mol% or more, and preferably 100 mol% or less, and may be 100 mol%.
- the weight average molecular weight of component (b2) is preferably 10,000 or more, more preferably 100,000 or more, still more preferably 300,000 or more, and preferably 1,000 or more, from the viewpoint of anti-caking properties of the fertilizer. ,000 or less, more preferably 800,000 or less, still more preferably 500,000 or less, even more preferably 300,000 or less.
- the weight average molecular weight of component (b2) is determined by gel permeation chromatography (GPC) using a mixed solution of acetonitrile and water (phosphate buffer) as a developing solvent and polyethylene glycol as a standard.
- Component (c) of the present invention includes dimethylalkylamine (hereinafter referred to as component (c1)) and a polyhydric alcohol having a molecular weight of 50 to 200 and a hydroxyl group valency of 2 to 6 (hereinafter referred to as component (c2)). )).
- the number of carbon atoms in the alkyl group of component (c1) is preferably 8 or more, more preferably 12 or more, still more preferably 14 or more, even more preferably 16 or more, and preferably It is 22 or less, more preferably 18 or less.
- the alkyl group of component (c1) is linear or branched, preferably linear.
- Component (c1) includes one or more selected from dimethyloctylamine, dimethyldecylamine, dimethyllaurylamine, dimethylbehenylamine, dimethylcoconutamine, dimethylmyristylamine, dimethylpalmitylamine, and dimethylstearylamine. .
- Component (c1) is preferably one or more selected from dimethyllaurylamine, dimethylmyristylamine, dimethylpalmitylamine, and dimethylstearylamine, and more preferably dimethylstearylamine, from the viewpoint of anti-caking properties of the fertilizer.
- the molecular weight of component (c2) is 50 or more, preferably 60 or more, more preferably 70 or more, and 200 or less, preferably 190 or less, more preferably 180 g/mol or less, More preferably it is 150 or less, even more preferably 120 or less.
- the valence of the hydroxyl group in component (c2) is 2 or more and 6 or less, preferably 4 or less, from the viewpoint of preventing caking of the fertilizer.
- Component (c2) includes ethylene glycol (molecular weight 62.07; hydroxyl number 2), propylene glycol (molecular weight 76.09; hydroxyl number 2), diethylene glycol (molecular weight 106.12; hydroxyl number 2), dipropylene.
- Glycol molecular weight 134.17; hydroxyl number 2), glycerin (molecular weight 92.09; hydroxyl number 3), xylitol (molecular weight 152.15; hydroxyl number 5), mannitol (molecular weight 182.17; hydroxyl number 6) ), sorbitol (molecular weight 182.17; hydroxyl value number 6).
- component (c2) is preferably one or more selected from ethylene glycol, diethylene glycol, glycerin, and sorbitol, and more preferably one or more selected from diethylene glycol, glycerin, and sorbitol.
- component (c2) is preferably a polyhydric alcohol that is liquid at 25°C.
- Polyhydric alcohols that are liquid at 25°C include ethylene glycol (melting point: -13°C), propylene glycol (melting point: -59°C), diethylene glycol (melting point: -8°C), and dipropylene glycol (melting point: -39°C).
- glycerin melting point: -39°C
- the anti-caking agent composition for fertilizers of the present invention contains component (a), preferably at least 1% by mass, more preferably at least 5% by mass, from the viewpoint of uniform mixability of the anti-caking agent composition for fertilizers. More preferably 10% by mass or more, even more preferably 15% by mass or more, and preferably 30% by mass or less, more preferably 25% by mass or less, still more preferably 20% by mass or less, even more preferably 19% by mass or less. contains.
- the mass of component (a) is defined using a value converted to sodium salt.
- the anti-caking agent composition for fertilizers of the present invention contains component (b), preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably is 1% by mass or more, even more preferably 2% by mass or more, and preferably 15% by mass or less, more preferably 12% by mass or less, still more preferably 10% by mass or less, even more preferably 5% by mass or less, and more preferably More preferably, the content is 4% by mass or less.
- the anti-caking agent composition for fertilizers of the present invention preferably contains component (c) in an amount of 0.5% by mass or more, more preferably 1% by mass or more, still more preferably 1% by mass, from the viewpoint of anti-caking properties of fertilizers. Contains .5% by mass or more, even more preferably 2% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, still more preferably 15% by mass or less, even more preferably 10% by mass or less. .
- the content of component (c1) is preferably 0.5% by mass or more, more preferably Contains 1% by mass or more, more preferably 1.5% by mass or more, even more preferably 2% by mass or more, and preferably 5% by mass or less, more preferably 4% by mass or less, still more preferably 3% by mass or less. .
- the content of component (c2) is preferably 0.5% by mass or more, more preferably 1% by mass or more, more preferably 1.5% by mass or more, even more preferably 5% by mass or more, even more preferably 8% by mass or more, and preferably 20% by mass or less, more preferably 15% by mass or less, The content is more preferably 12% by mass or less, even more preferably 10% by mass or less.
- the mass ratio (c)/(a) between the content of component (a) and the content of component (c) is determined from the viewpoint of anti-caking properties of the fertilizer. , preferably 0.05 or more, more preferably 0.06 or more, even more preferably 0.07 or more, and preferably 3 or less, more preferably 2 or less, still more preferably 1 or less, even more preferably 0.6 Below, it is still more preferably 0.3 or less.
- the mass ratio (c1)/(a) of the content of component (a) and the content of component (c1) is: From the viewpoint of anti-caking properties of fertilizer, it is preferably 0.05 or more, more preferably 0.06 or more, even more preferably 0.07 or more, and preferably 3 or less, more preferably 2 or less, still more preferably 1 Below, it is still more preferably 0.6 or less, even more preferably 0.3 or less.
- the mass ratio (c2)/(a) of the content of component (a) and the content of component (c2) is: From the viewpoint of anti-caking properties of fertilizer, it is preferably 0.05 or more, more preferably 0.06 or more, even more preferably 0.07 or more, and preferably 15 or less, more preferably 12 or less, even more preferably 10 Below, it is still more preferably 3 or less.
- the mass ratio of the total content of component (a) and component (c) to the content of component (b) (b)/[(a)+(c) ] is preferably 0.01 or more, more preferably 0.02 or more, even more preferably 0.03 or more, and preferably 1.5 or less, more preferably 1. It is 0 or less, more preferably 0.5 or less.
- the mass ratio (b) of the total content of component (a) and component (c1) to the content of component (b) /[(a)+(c1)] is preferably 0.01 or more, more preferably 0.02 or more, even more preferably 0.03 or more, and preferably 1 .5 or less, more preferably 1.0 or less, still more preferably 0.7 or less, even more preferably 0.5 or less.
- the mass ratio (b) of the total content of component (a) and component (c2) to the content of component (b) /[(a)+(c2)] is preferably 0.01 or more, more preferably 0.02 or more, still more preferably 0.03 or more, and preferably 1 .5 or less, more preferably 1.0 or less, still more preferably 0.7 or less, even more preferably 0.5 or less.
- the anti-caking agent composition for fertilizers of the present invention contains water. That is, the anti-caking agent composition for fertilizer of the present invention is a liquid composition containing water. Examples of water include, but are not limited to, tap water, well water, ion exchange water, distilled water, and the like.
- the anti-caking agent composition for fertilizers of the present invention contains water preferably at least 20% by mass, more preferably at least 30% by mass, still more preferably at least 40% by mass, even more preferably at least 50% by mass, and even more preferably at least 50% by mass.
- the content is preferably 60% by mass or more, and preferably 98% by mass or less, more preferably 96% by mass or less, and still more preferably 80% by mass or less.
- the anti-caking agent composition for fertilizers of the present invention may contain other ingredients such as various crushed ore products, various oils, and starches (with the exception of ingredient (a), ingredient (b), excluding component (c)).
- the viscosity at 25°C of the anti-caking agent composition for fertilizers of the present invention is preferably 500 mPa ⁇ s or less, more preferably 300 mPa ⁇ s or less, still more preferably 200 mPa ⁇ s or less, from the viewpoint of uniformly coating the fertilizer surface. be.
- the lower limit of the viscosity may be 0 mPa ⁇ s or more. This viscosity was measured at 30°C using a B-type viscometer.
- the anti-caking agent composition for fertilizers of the present invention can be used to prevent caking of fertilizer components by coating the particle surfaces of the fertilizer components.
- the fertilizer components are the same as those described in the fertilizer composition of the present invention below.
- the present invention provides a fertilizer composition containing the anti-caking agent composition for fertilizer of the present invention and a fertilizer component.
- the present invention also provides a fertilizer composition containing component (a), component (b), component (c), and fertilizer components.
- the fertilizer composition of the present invention can appropriately apply the embodiments described in the anti-caking agent composition for fertilizers of the present invention.
- the regulations regarding component (a), component (b), component (c), and the mass ratio of each component are the same as those described in the anti-caking agent composition for fertilizer of the present invention.
- fertilizer components include nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, iron, manganese, copper, zinc, molybdenum, chlorine, silicon, sodium, etc., especially nitrogen, phosphorus, potassium, calcium,
- examples include inorganic substances and organic substances that serve as sources of magnesium.
- Such inorganic substances include ammonium nitrate, potassium nitrate, ammonium sulfate, ammonium chloride, ammonium phosphate, sodium nitrate, urea, ammonium carbonate, potassium phosphate, lime superphosphate, and fused phosphorus fertilizer (3MgO ⁇ CaO ⁇ P 2 O 5 -3CaSiO 2 ), potassium sulfate, potassium salt, lime nitrate, slaked lime, lime carbonate, magnesium sulfate, magnesium hydroxide, magnesium carbonate, and the like.
- organic substances include chicken manure, cow manure, bark compost, amino acids, peptone, millet extract, fermented extract, calcium salts of organic acids (citric acid, gluconic acid, succinic acid, etc.), fatty acids (formic acid, acetic acid, propionic acid, Examples include calcium salts of caprylic acid, capric acid, caproic acid, etc.).
- Fertilizer components are solid particles. From the viewpoint of anti-caking properties, the average particle size of the fertilizer component is preferably 0.01 mm or more, more preferably 0.1 mm or more, even more preferably 1 mm or more, and preferably 10 mm or less, more preferably 5 mm or less. be.
- the average particle size of the fertilizer component is the number average size based on 100 randomly selected particles observed with an optical microscope. If there is a major axis and a minor axis, measure the major axis.
- the fertilizer composition of the present invention contains the anti-caking agent composition for fertilizer of the present invention in an amount of preferably 50 ppm or more, more preferably 100 ppm or more, based on the mass of the fertilizer component, from the viewpoint of the anti-caking property of the fertilizer. More preferably, it contains 200 ppm or more, even more preferably 1,000 ppm or more, even more preferably 2,000 ppm or more, and preferably 5,000 ppm or less, more preferably 4,000 ppm or less, and even more preferably 3,000 ppm or less. .
- the fertilizer composition of the present invention preferably contains component (a) in an amount of 20 ppm or more, more preferably 100 ppm or more, still more preferably 300 ppm or more, based on the mass of the fertilizer component, from the viewpoint of anti-caking properties of the fertilizer. , preferably 600 ppm or less, more preferably 500 ppm or less, still more preferably 400 ppm or less.
- the fertilizer composition of the present invention preferably contains component (b) in an amount of 20 ppm or more, more preferably 40 ppm or more, still more preferably 60 ppm or more, based on the mass of the fertilizer component, from the viewpoint of anti-caking properties of the fertilizer. , preferably 300 ppm or less, more preferably 200 ppm or less, still more preferably 100 ppm or less.
- the fertilizer composition of the present invention preferably contains component (c) in an amount of 1 ppm or more, more preferably 20 ppm or more, still more preferably 40 ppm or more, based on the mass of the fertilizer component, from the viewpoint of anti-caking properties of the fertilizer. , preferably 600 ppm or less, more preferably 400 ppm or less, still more preferably 200 ppm or less.
- the amount of component (c1) is preferably 5 ppm or more, more preferably 10 ppm, based on the mass of the fertilizer component, from the viewpoint of anti-caking properties of the fertilizer.
- the content is more preferably 20 ppm or more, more preferably 100 ppm or less, more preferably 80 ppm or less, still more preferably 60 ppm or less.
- the amount of component (c2) is preferably 1 ppm or more, more preferably 10 ppm, based on the mass of the fertilizer component, from the viewpoint of anti-caking properties of the fertilizer.
- the content is more preferably 30 ppm or more, and preferably 400 ppm or less, more preferably 300 ppm or less, and still more preferably 200 ppm or less.
- the particle surfaces of fertilizer components are coated with the fertilizer anti-caking agent composition of the present invention. That is, the fertilizer composition of the present invention prevents moisture absorption and recrystallization on the particle surface of the fertilizer component by coating the particle surface of the fertilizer component with component (a), component (b), and component (c). can be prevented and the caking of the fertilizer composition can be reduced.
- the fertilizer composition of the present invention is solid particles.
- the average particle size of the fertilizer composition of the present invention is preferably 0.01 mm or more, more preferably 0.1 mm or more, still more preferably 1 mm or more, and preferably 10 mm or less, from the viewpoint of anti-caking properties of the fertilizer. More preferably, it is 5 mm or less.
- the average particle size of the fertilizer composition is the number average size based on 100 randomly selected particles observed with an optical microscope. If there is a major axis and a minor axis, measure the major axis.
- the fertilizer composition of the present invention is preferably produced by coating the surface of particles of fertilizer components with the anti-caking agent composition for fertilizers of the present invention. That is, the present invention provides a method for producing a fertilizer composition, in which the surfaces of particles of fertilizer components are coated with the anti-caking agent composition for fertilizer of the present invention. In the method for producing the fertilizer composition of the present invention, the embodiments described for the anti-caking agent composition for fertilizers and the fertilizer composition of the present invention can be applied as appropriate.
- the anti-caking agent composition for fertilizers of the present invention may be sprayed or applied, preferably sprayed, onto the particle surface of the fertilizer component.
- the fertilizer may be dried by dry air, hot air, heat treatment, etc.
- a fertilizer composition in which the particle surfaces of fertilizer components are coated with component (a), component (b), and component (c) can be produced.
- the method of spraying the anti-caking agent composition for fertilizer of the present invention onto the surface of particles of fertilizer components can be carried out, for example, while the fertilizer components are being conveyed on a belt conveyor, or when they are falling as a stream from a conveyor or the like.
- a method of spraying an anti-caking agent composition for fertilizer during this period is mentioned.
- the coating treatment amount of the anti-caking agent composition for fertilizers of the present invention is preferably 500 ppm or more, more preferably 800 ppm or more, still more preferably 1 ,000 ppm or more, more preferably 2,000 ppm or more, and preferably 5,000 ppm or less, more preferably 4,000 ppm or less, still more preferably 3,000 ppm or less.
- the fertilizer composition is dried at a room temperature of 10°C or more and 40°C or less, or the fertilizer composition is coated with the fertilizer composition at 50°C or more. It may be dried by blowing hot air at 200°C or less.
- the present invention provides a method for preventing caking of fertilizer components, which comprises coating the surfaces of particles of fertilizer components with the anti-caking agent composition for fertilizers of the present invention.
- the method for preventing caking of fertilizer components of the present invention can appropriately apply the embodiments described in the anti-caking agent composition for fertilizers of the present invention, the fertilizer composition of the present invention, and the manufacturing method thereof.
- the method of coating the particle surface of the fertilizer component with the anti-caking agent composition for fertilizer of the present invention is the same as the embodiment described in the method for producing the fertilizer composition of the present invention.
- ⁇ Component (b)> ⁇ Styrene-2-ethylhexyl acrylate copolymer: component (b1), "EBL6948”, manufactured by Eternal, molar ratio (styrene/acrylic acid ester) 0.77, weight average molecular weight 300,000 ⁇ Polyvinyl acetate: component (b2), "ALFACOAT 5408AC”, manufactured by ALFA POLIMER, weight average molecular weight 200,000
- a fertilizer composition was prepared by uniformly spraying the composition onto the particle surface of the NPK fertilizer component using a sprayer so that the coating amount was as shown in Table 1.
- 80 g of the prepared fertilizer composition was filled into a cylindrical mold with a height of 70 mm and a diameter of 48 mm with ventilation holes on the side, and after closing the lid while applying a pressure of 109 kPa, the mold was placed in an atmosphere of 30° C. and 75% relative humidity.
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- Fertilizers (AREA)
Abstract
Provided is an anti-caking agent composition for fertilizer that has good storage stability, and that prevents the caking of a fertilizer ingredient having a caking property. The anti-caking agent composition for fertilizer contains an ingredient (a), an ingredient (b), and an ingredient (c). Ingredient (a): an anionic surfactant. Ingredient (b): one or more selected from among polyvinyl acetate, and a copolymer of styrene and an acrylic ester. Ingredient (c): one or more selected from among a dimethyl alkylamine, and a polyhydric alcohol having a molecular weight of 50-200 and a hydroxyl group valence of 2-6.
Description
本発明は、肥料用固結防止剤組成物、肥料組成物、肥料組成物の製造方法及び肥料成分の固結防止方法に関する。
The present invention relates to an anti-caking agent composition for fertilizer, a fertilizer composition, a method for producing a fertilizer composition, and a method for preventing caking of fertilizer components.
背景技術
化成肥料などの粒状肥料成分では、製品中の水分による固結の発生が問題となる。化成肥料では、吸湿して溶解した肥料溶液の再結晶化が固結発生の原因と考えられている。
こうした粒状肥料における固結発生問題に対処すべく、従来より、被覆材の使用や造粒工程の工夫などによる様々な固結防止手段が提案されている。しかしながら、製造工程が簡便で製造コストが安価な肥料成分に対し、経済的・商業的な利点を損なわずに適用できる固結防止方法として満足の行くものは知られていない。 Background Art Granular fertilizer components such as chemical fertilizers have a problem of caking due to moisture in the product. In chemical fertilizers, recrystallization of the dissolved fertilizer solution after absorbing moisture is thought to be the cause of caking.
In order to deal with the problem of caking in granular fertilizers, various methods for preventing caking have been proposed, such as the use of coating materials and improvements in the granulation process. However, there is no known satisfactory caking prevention method that can be applied to fertilizer components that have simple manufacturing processes and low manufacturing costs without sacrificing their economic and commercial advantages.
化成肥料などの粒状肥料成分では、製品中の水分による固結の発生が問題となる。化成肥料では、吸湿して溶解した肥料溶液の再結晶化が固結発生の原因と考えられている。
こうした粒状肥料における固結発生問題に対処すべく、従来より、被覆材の使用や造粒工程の工夫などによる様々な固結防止手段が提案されている。しかしながら、製造工程が簡便で製造コストが安価な肥料成分に対し、経済的・商業的な利点を損なわずに適用できる固結防止方法として満足の行くものは知られていない。 Background Art Granular fertilizer components such as chemical fertilizers have a problem of caking due to moisture in the product. In chemical fertilizers, recrystallization of the dissolved fertilizer solution after absorbing moisture is thought to be the cause of caking.
In order to deal with the problem of caking in granular fertilizers, various methods for preventing caking have been proposed, such as the use of coating materials and improvements in the granulation process. However, there is no known satisfactory caking prevention method that can be applied to fertilizer components that have simple manufacturing processes and low manufacturing costs without sacrificing their economic and commercial advantages.
特開昭62-275084には、ポリビニル酢酸などの水不溶性合成高分子化合物と、オクチル硫酸ナトリウムなどの特定のアニオン性界面活性剤と、ポリビニルアルコールなどの湿展固着剤を含有することを特徴とする肥料の固結防止剤が開示されている。
特公昭49-17827には、ポリビニルアルコール、ポリアクリル酸ナトリウムなどの非解離性水溶性高分子化合物と、デシル硫酸ナトリウム、オクチル硫酸ナトリウムなどの特定のアニオン性界面活性とを含む水溶液を、固結性肥料に添加し、添加後実質上水分を除去することを特徴とする固結性肥料の固結防止法が開示されている。
特公昭49-17104には、ポリ酢酸ビニルなどの水不溶性合成高分子化合物を、炭素数6~10のアルキル基を有するアルキル硫酸塩を含む濃厚水溶液で可溶化して得た水溶液を、適度に希釈し、又はそのままで固結性肥料に添加し、添加後実質上水分を除去することを特徴とする固結性肥料の固結防止方法が開示されている。 JP-A No. 62-275084 discloses a method that contains a water-insoluble synthetic polymer compound such as polyvinyl acetic acid, a specific anionic surfactant such as sodium octyl sulfate, and a wet spreading fixing agent such as polyvinyl alcohol. An anti-caking agent for fertilizers is disclosed.
Japanese Patent Publication No. 49-17827 discloses that an aqueous solution containing a non-dissociable water-soluble polymer compound such as polyvinyl alcohol or sodium polyacrylate and a specific anionic surfactant such as sodium decyl sulfate or sodium octyl sulfate is solidified. Disclosed is a method for preventing caking of a caking fertilizer, which is characterized by adding the compound to a caking fertilizer and substantially removing water after the addition.
Japanese Patent Publication No. 49-17104 discloses that an aqueous solution obtained by solubilizing a water-insoluble synthetic polymer compound such as polyvinyl acetate with a concentrated aqueous solution containing an alkyl sulfate having an alkyl group having 6 to 10 carbon atoms is A method for preventing caking of a caking fertilizer is disclosed, which comprises adding the compound to the caking fertilizer either diluted or as is, and substantially removing water after addition.
特公昭49-17827には、ポリビニルアルコール、ポリアクリル酸ナトリウムなどの非解離性水溶性高分子化合物と、デシル硫酸ナトリウム、オクチル硫酸ナトリウムなどの特定のアニオン性界面活性とを含む水溶液を、固結性肥料に添加し、添加後実質上水分を除去することを特徴とする固結性肥料の固結防止法が開示されている。
特公昭49-17104には、ポリ酢酸ビニルなどの水不溶性合成高分子化合物を、炭素数6~10のアルキル基を有するアルキル硫酸塩を含む濃厚水溶液で可溶化して得た水溶液を、適度に希釈し、又はそのままで固結性肥料に添加し、添加後実質上水分を除去することを特徴とする固結性肥料の固結防止方法が開示されている。 JP-A No. 62-275084 discloses a method that contains a water-insoluble synthetic polymer compound such as polyvinyl acetic acid, a specific anionic surfactant such as sodium octyl sulfate, and a wet spreading fixing agent such as polyvinyl alcohol. An anti-caking agent for fertilizers is disclosed.
Japanese Patent Publication No. 49-17827 discloses that an aqueous solution containing a non-dissociable water-soluble polymer compound such as polyvinyl alcohol or sodium polyacrylate and a specific anionic surfactant such as sodium decyl sulfate or sodium octyl sulfate is solidified. Disclosed is a method for preventing caking of a caking fertilizer, which is characterized by adding the compound to a caking fertilizer and substantially removing water after the addition.
Japanese Patent Publication No. 49-17104 discloses that an aqueous solution obtained by solubilizing a water-insoluble synthetic polymer compound such as polyvinyl acetate with a concentrated aqueous solution containing an alkyl sulfate having an alkyl group having 6 to 10 carbon atoms is A method for preventing caking of a caking fertilizer is disclosed, which comprises adding the compound to the caking fertilizer either diluted or as is, and substantially removing water after addition.
発明の概要
本発明は、保存安定性が良好であり、固結性のある肥料成分の固結を防止する肥料用固結防止剤組成物、肥料成分の固結性が低減された肥料組成物、及びその製造方法、並びに肥料成分の固結防止方法を提供する。 Summary of the Invention The present invention provides an anti-caking agent composition for fertilizers that has good storage stability and prevents caking of fertilizer components with caking properties, and a fertilizer composition with reduced caking properties of fertilizer components. , a method for producing the same, and a method for preventing caking of fertilizer components.
本発明は、保存安定性が良好であり、固結性のある肥料成分の固結を防止する肥料用固結防止剤組成物、肥料成分の固結性が低減された肥料組成物、及びその製造方法、並びに肥料成分の固結防止方法を提供する。 Summary of the Invention The present invention provides an anti-caking agent composition for fertilizers that has good storage stability and prevents caking of fertilizer components with caking properties, and a fertilizer composition with reduced caking properties of fertilizer components. , a method for producing the same, and a method for preventing caking of fertilizer components.
本発明は、下記の成分(a)、成分(b)、及び成分(c)を含有する、肥料用固結防止剤組成物に関する。
成分(a):アニオン性界面活性剤
成分(b):スチレンとアクリル酸エステルのコポリマー、及びポリ酢酸ビニルから選ばれる1種以上
成分(c):ジメチルアルキルアミン(以下、成分(c1)という)及び分子量が50以上200以下であり、水酸基の価数が2以上6以下の多価アルコール(以下、成分(c2)という)から選ばれる1種以上 The present invention relates to an anti-caking agent composition for fertilizer containing the following components (a), (b), and (c).
Component (a): Anionic surfactant Component (b): One or more types selected from a copolymer of styrene and acrylic acid ester, and polyvinyl acetate Component (c): Dimethylalkylamine (hereinafter referred to as component (c1)) and one or more polyhydric alcohols having a molecular weight of 50 or more and 200 or less and a hydroxyl group valence of 2 or more and 6 or less (hereinafter referred to as component (c2))
成分(a):アニオン性界面活性剤
成分(b):スチレンとアクリル酸エステルのコポリマー、及びポリ酢酸ビニルから選ばれる1種以上
成分(c):ジメチルアルキルアミン(以下、成分(c1)という)及び分子量が50以上200以下であり、水酸基の価数が2以上6以下の多価アルコール(以下、成分(c2)という)から選ばれる1種以上 The present invention relates to an anti-caking agent composition for fertilizer containing the following components (a), (b), and (c).
Component (a): Anionic surfactant Component (b): One or more types selected from a copolymer of styrene and acrylic acid ester, and polyvinyl acetate Component (c): Dimethylalkylamine (hereinafter referred to as component (c1)) and one or more polyhydric alcohols having a molecular weight of 50 or more and 200 or less and a hydroxyl group valence of 2 or more and 6 or less (hereinafter referred to as component (c2))
また本発明は、本発明の肥料用固結防止剤組成物、及び肥料成分を含有する、肥料組成物に関する。
The present invention also relates to a fertilizer composition containing the anti-caking agent composition for fertilizers of the present invention and fertilizer components.
また本発明は、本発明の肥料用固結防止剤組成物を、肥料成分の粒子表面に被覆処理する、肥料組成物の製造方法に関する。
The present invention also relates to a method for producing a fertilizer composition, in which the surfaces of particles of fertilizer components are coated with the anti-caking agent composition for fertilizers of the present invention.
また本発明は、本発明の肥料用固結防止剤組成物を、肥料成分の粒子表面に被覆処理する、肥料成分の固結防止方法に関する。
The present invention also relates to a method for preventing caking of fertilizer components, which comprises coating the surfaces of particles of fertilizer components with the anti-caking agent composition for fertilizers of the present invention.
本発明によれば、保存安定性が良好であり、固結性のある肥料成分の固結を防止する肥料用固結防止剤組成物、肥料成分の固結性が低減された肥料組成物、及びその製造方法、並びに肥料成分の固結防止方法が提供される。
According to the present invention, an anti-caking agent composition for fertilizers that has good storage stability and prevents caking of fertilizer components with caking properties, a fertilizer composition with reduced caking properties of fertilizer components, A method for manufacturing the same, and a method for preventing caking of fertilizer components are provided.
発明を実施するための形態
本発明の肥料用固結防止剤組成物が、固結性のある肥料成分の固結を防止できる理由は必ずしも定かではないが以下の通り推定される。
成分(a)のアニオン性界面活性剤が肥料表面に吸着することにより肥料表面が疎水化される。これにより水が肥料表面に対して作用し難くなると考えられる。
一方、成分(b)の特定の高分子は肥料表面にポリマーの薄膜を形成することにより水の肥料表面への作用、肥料粒子同士の接触を抑制することにより固結防止性を発現するものと推定される。
また成分(c)の内、成分(c1)のジメチルアルキルアミンは成分(a)と同様に肥料表面に吸着することにより肥料表面が疎水化されて水の作用を低減するものと推定される。
また成分(c)の内、成分(c2)の特定の多価アルコールはこれ自身が水分を補足することにより肥料表面に作用する水の量を低減することにより固結防止効果を発現するものと推定される。
これら成分(a)、成分(b)、および成分(c)が肥料表面で相補的に作用することにより、驚くことに相乗的に固結防止効果を発現し、本発明の効果が得られたものと考えられる。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The reason why the anti-caking agent composition for fertilizers of the present invention is able to prevent caking of fertilizer components having caking properties is not necessarily certain, but it is presumed as follows.
The anionic surfactant of component (a) adsorbs onto the surface of the fertilizer, thereby making the surface of the fertilizer hydrophobic. It is thought that this makes it difficult for water to act on the fertilizer surface.
On the other hand, the specific polymer of component (b) exhibits anti-caking properties by forming a thin polymer film on the fertilizer surface, thereby suppressing the action of water on the fertilizer surface and contact between fertilizer particles. Presumed.
Furthermore, among component (c), component (c1) dimethylalkylamine is presumed to adsorb onto the fertilizer surface, making the fertilizer surface hydrophobic and reducing the action of water, similar to component (a).
In addition, among component (c), the specific polyhydric alcohol of component (c2) exhibits an anti-caking effect by reducing the amount of water acting on the fertilizer surface by capturing moisture itself. Presumed.
Surprisingly, these components (a), (b), and (c) act complementary to each other on the surface of the fertilizer, resulting in a synergistic anti-caking effect, and the effects of the present invention were obtained. considered to be a thing.
本発明の肥料用固結防止剤組成物が、固結性のある肥料成分の固結を防止できる理由は必ずしも定かではないが以下の通り推定される。
成分(a)のアニオン性界面活性剤が肥料表面に吸着することにより肥料表面が疎水化される。これにより水が肥料表面に対して作用し難くなると考えられる。
一方、成分(b)の特定の高分子は肥料表面にポリマーの薄膜を形成することにより水の肥料表面への作用、肥料粒子同士の接触を抑制することにより固結防止性を発現するものと推定される。
また成分(c)の内、成分(c1)のジメチルアルキルアミンは成分(a)と同様に肥料表面に吸着することにより肥料表面が疎水化されて水の作用を低減するものと推定される。
また成分(c)の内、成分(c2)の特定の多価アルコールはこれ自身が水分を補足することにより肥料表面に作用する水の量を低減することにより固結防止効果を発現するものと推定される。
これら成分(a)、成分(b)、および成分(c)が肥料表面で相補的に作用することにより、驚くことに相乗的に固結防止効果を発現し、本発明の効果が得られたものと考えられる。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The reason why the anti-caking agent composition for fertilizers of the present invention is able to prevent caking of fertilizer components having caking properties is not necessarily certain, but it is presumed as follows.
The anionic surfactant of component (a) adsorbs onto the surface of the fertilizer, thereby making the surface of the fertilizer hydrophobic. It is thought that this makes it difficult for water to act on the fertilizer surface.
On the other hand, the specific polymer of component (b) exhibits anti-caking properties by forming a thin polymer film on the fertilizer surface, thereby suppressing the action of water on the fertilizer surface and contact between fertilizer particles. Presumed.
Furthermore, among component (c), component (c1) dimethylalkylamine is presumed to adsorb onto the fertilizer surface, making the fertilizer surface hydrophobic and reducing the action of water, similar to component (a).
In addition, among component (c), the specific polyhydric alcohol of component (c2) exhibits an anti-caking effect by reducing the amount of water acting on the fertilizer surface by capturing moisture itself. Presumed.
Surprisingly, these components (a), (b), and (c) act complementary to each other on the surface of the fertilizer, resulting in a synergistic anti-caking effect, and the effects of the present invention were obtained. considered to be a thing.
[肥料用固結防止剤組成物]
<成分(a)>
本発明の成分(a)は、アニオン性界面活性剤である。
成分(a)としては、アルキル又はアルケニル硫酸エステル、アルカンスルホン酸、オレフィンスルホン酸、脂肪酸、及びこれらの塩から選ばれる1種以上が挙げられる。成分(a)の塩としては、例えばナトリウム塩、カリウム塩などのアルカリ金属塩、アンモニウム塩などであってよい。 [Anti-caking agent composition for fertilizer]
<Component (a)>
Component (a) of the present invention is an anionic surfactant.
Component (a) includes one or more selected from alkyl or alkenyl sulfates, alkanesulfonic acids, olefinsulfonic acids, fatty acids, and salts thereof. The salt of component (a) may be, for example, an alkali metal salt such as a sodium salt or potassium salt, or an ammonium salt.
<成分(a)>
本発明の成分(a)は、アニオン性界面活性剤である。
成分(a)としては、アルキル又はアルケニル硫酸エステル、アルカンスルホン酸、オレフィンスルホン酸、脂肪酸、及びこれらの塩から選ばれる1種以上が挙げられる。成分(a)の塩としては、例えばナトリウム塩、カリウム塩などのアルカリ金属塩、アンモニウム塩などであってよい。 [Anti-caking agent composition for fertilizer]
<Component (a)>
Component (a) of the present invention is an anionic surfactant.
Component (a) includes one or more selected from alkyl or alkenyl sulfates, alkanesulfonic acids, olefinsulfonic acids, fatty acids, and salts thereof. The salt of component (a) may be, for example, an alkali metal salt such as a sodium salt or potassium salt, or an ammonium salt.
成分(a)としては、肥料の固結防止性の観点から、アルキル又はアルケニル硫酸エステル又はその塩が好ましく、炭素数6以上18以下のアルキル又はアルケニル硫酸エステル又はその塩がより好ましい。前記炭素数は、アルキル基又はアルケニル基の炭素数である。
アルキル基又はアルケニル基は、肥料の固結防止性の観点から、炭素数が、6以上、好ましくは8以上、より好ましくは10以上、そして、18以下、好ましくは16以下、より好ましくは14以下であり、直鎖若しくは分岐鎖であり、好ましくは直鎖である。また、硫酸エステル基に結合するアルキル基又はアルケニル基の炭素は、肥料用固結防止剤組成物の配合安定性の観点から、1級炭素であることが好ましい。成分(a)は、肥料の固結防止性の観点から、例えば炭素数12のラウリル硫酸エステル又はその塩が好ましい。 Component (a) is preferably an alkyl or alkenyl sulfate or a salt thereof, more preferably an alkyl or alkenyl sulfate having 6 or more and 18 or less carbon atoms or a salt thereof, from the viewpoint of anti-caking properties of the fertilizer. The number of carbon atoms is the number of carbon atoms in an alkyl group or an alkenyl group.
From the viewpoint of anti-caking properties of fertilizer, the alkyl group or alkenyl group has a carbon number of 6 or more, preferably 8 or more, more preferably 10 or more, and 18 or less, preferably 16 or less, more preferably 14 or less. and is linear or branched, preferably linear. Further, the carbon of the alkyl group or alkenyl group bonded to the sulfate ester group is preferably primary carbon from the viewpoint of formulation stability of the anti-caking agent composition for fertilizer. From the viewpoint of anti-caking properties of the fertilizer, component (a) is preferably, for example, lauryl sulfate having 12 carbon atoms or a salt thereof.
アルキル基又はアルケニル基は、肥料の固結防止性の観点から、炭素数が、6以上、好ましくは8以上、より好ましくは10以上、そして、18以下、好ましくは16以下、より好ましくは14以下であり、直鎖若しくは分岐鎖であり、好ましくは直鎖である。また、硫酸エステル基に結合するアルキル基又はアルケニル基の炭素は、肥料用固結防止剤組成物の配合安定性の観点から、1級炭素であることが好ましい。成分(a)は、肥料の固結防止性の観点から、例えば炭素数12のラウリル硫酸エステル又はその塩が好ましい。 Component (a) is preferably an alkyl or alkenyl sulfate or a salt thereof, more preferably an alkyl or alkenyl sulfate having 6 or more and 18 or less carbon atoms or a salt thereof, from the viewpoint of anti-caking properties of the fertilizer. The number of carbon atoms is the number of carbon atoms in an alkyl group or an alkenyl group.
From the viewpoint of anti-caking properties of fertilizer, the alkyl group or alkenyl group has a carbon number of 6 or more, preferably 8 or more, more preferably 10 or more, and 18 or less, preferably 16 or less, more preferably 14 or less. and is linear or branched, preferably linear. Further, the carbon of the alkyl group or alkenyl group bonded to the sulfate ester group is preferably primary carbon from the viewpoint of formulation stability of the anti-caking agent composition for fertilizer. From the viewpoint of anti-caking properties of the fertilizer, component (a) is preferably, for example, lauryl sulfate having 12 carbon atoms or a salt thereof.
<成分(b)>
本発明の成分(b)は、スチレンとアクリル酸エステルのコポリマー(以下、成分(b1)という)、及びポリ酢酸ビニル(以下、成分(b2)という)から選ばれる1種以上である。 <Component (b)>
Component (b) of the present invention is one or more selected from a copolymer of styrene and acrylic ester (hereinafter referred to as component (b1)) and polyvinyl acetate (hereinafter referred to as component (b2)).
本発明の成分(b)は、スチレンとアクリル酸エステルのコポリマー(以下、成分(b1)という)、及びポリ酢酸ビニル(以下、成分(b2)という)から選ばれる1種以上である。 <Component (b)>
Component (b) of the present invention is one or more selected from a copolymer of styrene and acrylic ester (hereinafter referred to as component (b1)) and polyvinyl acetate (hereinafter referred to as component (b2)).
成分(b1)において、構成モノマーであるスチレンとしては、スチレン、メチルスチレン、ジメチルスチレン、トリメチルスチレン、ブチルスチレン、アセトキシスチレン、及びメトキシスチレンから選ばれる1種以上が挙げられる。肥料の固結防止性の観点から、スチレンが好ましい。
成分(b1)において、構成モノマーであるアクリル酸エステルのエステル部分の炭素数は、肥料の固結防止性の観点から、好ましくは2以上、より好ましくは7以上、更に好ましくは9以上、そして、好ましくは17以下、より好ましくは15以下、更に好ましくは13以下である。前記エステル部分の炭素数は、-C(O)-O-R1bにおいて(R1bは炭化水素基)、-C(O)-O-の炭素を含む炭素数である。R1bは炭化水素基であり、肥料の固結防止性の観点から、好ましくは直鎖若しくは分岐鎖のアルキル基又は直鎖若しくは分岐鎖のアルケニル基であり、より好ましくは直鎖若しくは分岐鎖のアルキル基であり、更に好ましくは分岐鎖のアルキル基である。
成分(b1)において、構成モノマーであるアクリル酸エステルとしては、2-エチルヘキシルアクリレート、n-オクチルアクリレート、及びドデシルアクリレートから選ばれる1種以上が挙げられる。 In component (b1), the constituent monomer styrene includes one or more selected from styrene, methylstyrene, dimethylstyrene, trimethylstyrene, butylstyrene, acetoxystyrene, and methoxystyrene. Styrene is preferred from the viewpoint of anti-caking properties of fertilizers.
In component (b1), the number of carbon atoms in the ester moiety of the acrylic ester as a constituent monomer is preferably 2 or more, more preferably 7 or more, still more preferably 9 or more, from the viewpoint of anti-caking properties of the fertilizer, and Preferably it is 17 or less, more preferably 15 or less, still more preferably 13 or less. The number of carbon atoms in the ester moiety is the number of carbon atoms including the carbon in -C(O)-O-R 1b (R 1b is a hydrocarbon group) and -C(O)-O-. R 1b is a hydrocarbon group, preferably a straight-chain or branched alkyl group or a straight-chain or branched alkenyl group, more preferably a straight-chain or branched alkenyl group, from the viewpoint of anti-caking properties of fertilizers. It is an alkyl group, more preferably a branched alkyl group.
In component (b1), the acrylic ester as a constituent monomer includes one or more selected from 2-ethylhexyl acrylate, n-octyl acrylate, and dodecyl acrylate.
成分(b1)において、構成モノマーであるアクリル酸エステルのエステル部分の炭素数は、肥料の固結防止性の観点から、好ましくは2以上、より好ましくは7以上、更に好ましくは9以上、そして、好ましくは17以下、より好ましくは15以下、更に好ましくは13以下である。前記エステル部分の炭素数は、-C(O)-O-R1bにおいて(R1bは炭化水素基)、-C(O)-O-の炭素を含む炭素数である。R1bは炭化水素基であり、肥料の固結防止性の観点から、好ましくは直鎖若しくは分岐鎖のアルキル基又は直鎖若しくは分岐鎖のアルケニル基であり、より好ましくは直鎖若しくは分岐鎖のアルキル基であり、更に好ましくは分岐鎖のアルキル基である。
成分(b1)において、構成モノマーであるアクリル酸エステルとしては、2-エチルヘキシルアクリレート、n-オクチルアクリレート、及びドデシルアクリレートから選ばれる1種以上が挙げられる。 In component (b1), the constituent monomer styrene includes one or more selected from styrene, methylstyrene, dimethylstyrene, trimethylstyrene, butylstyrene, acetoxystyrene, and methoxystyrene. Styrene is preferred from the viewpoint of anti-caking properties of fertilizers.
In component (b1), the number of carbon atoms in the ester moiety of the acrylic ester as a constituent monomer is preferably 2 or more, more preferably 7 or more, still more preferably 9 or more, from the viewpoint of anti-caking properties of the fertilizer, and Preferably it is 17 or less, more preferably 15 or less, still more preferably 13 or less. The number of carbon atoms in the ester moiety is the number of carbon atoms including the carbon in -C(O)-O-R 1b (R 1b is a hydrocarbon group) and -C(O)-O-. R 1b is a hydrocarbon group, preferably a straight-chain or branched alkyl group or a straight-chain or branched alkenyl group, more preferably a straight-chain or branched alkenyl group, from the viewpoint of anti-caking properties of fertilizers. It is an alkyl group, more preferably a branched alkyl group.
In component (b1), the acrylic ester as a constituent monomer includes one or more selected from 2-ethylhexyl acrylate, n-octyl acrylate, and dodecyl acrylate.
成分(b1)において、構成モノマーであるスチレンとアクリル酸エステルとのモル比(スチレン/アクリル酸エステル)は、肥料の固結防止性の観点から、好ましくは0.6以上、より好ましくは0.7以上、更に好ましくは0.75以上、そして、好ましくは2.0以下、より好ましくは1.5以下、更に好ましくは1.0以下、より更に好ましくは0.9以下である。
In component (b1), the molar ratio of the constituent monomers styrene and acrylic ester (styrene/acrylic ester) is preferably 0.6 or more, more preferably 0.6 from the viewpoint of anti-caking properties of the fertilizer. It is 7 or more, more preferably 0.75 or more, and preferably 2.0 or less, more preferably 1.5 or less, even more preferably 1.0 or less, and even more preferably 0.9 or less.
成分(b1)は、本発明の効果を妨げない範囲で、スチレンとアクリル酸エステル以外のモノマーであって、スチレン及び/又はアクリル酸エステルと共重合可能なモノマーを含んだコポリマーであってもよい。スチレンとアクリル酸エステル以外のモノマーであって、スチレン及び/又はアクリル酸エステルと共重合可能なモノマーとしては、ビニル系モノマー、アクリル系モノマー等が挙げられる。
成分(b1)において、全構成モノマー中、スチレンとアクリル酸エステルの合計量は、肥料の固結防止性の観点から、好ましくは60モル%以上、より好ましくは70モル%以上、更に好ましくは80モル%以上、より更に好ましくは90モル%以上、そして、好ましくは100モル%以下であり、100モル%であってよい。 Component (b1) may be a copolymer containing a monomer other than styrene and acrylic ester and copolymerizable with styrene and/or acrylic ester, as long as it does not impede the effects of the present invention. . Monomers other than styrene and acrylic esters that can be copolymerized with styrene and/or acrylic esters include vinyl monomers, acrylic monomers, and the like.
In component (b1), the total amount of styrene and acrylic acid ester in all constituent monomers is preferably 60 mol% or more, more preferably 70 mol% or more, still more preferably 80 mol% or more, from the viewpoint of anti-caking properties of the fertilizer. It is mol% or more, more preferably 90 mol% or more, and preferably 100 mol% or less, and may be 100 mol%.
成分(b1)において、全構成モノマー中、スチレンとアクリル酸エステルの合計量は、肥料の固結防止性の観点から、好ましくは60モル%以上、より好ましくは70モル%以上、更に好ましくは80モル%以上、より更に好ましくは90モル%以上、そして、好ましくは100モル%以下であり、100モル%であってよい。 Component (b1) may be a copolymer containing a monomer other than styrene and acrylic ester and copolymerizable with styrene and/or acrylic ester, as long as it does not impede the effects of the present invention. . Monomers other than styrene and acrylic esters that can be copolymerized with styrene and/or acrylic esters include vinyl monomers, acrylic monomers, and the like.
In component (b1), the total amount of styrene and acrylic acid ester in all constituent monomers is preferably 60 mol% or more, more preferably 70 mol% or more, still more preferably 80 mol% or more, from the viewpoint of anti-caking properties of the fertilizer. It is mol% or more, more preferably 90 mol% or more, and preferably 100 mol% or less, and may be 100 mol%.
成分(b1)の重量平均分子量は、固結防止性の観点から、好ましくは50,000以上、より好ましくは100,000以上、更に好ましくは200,000以上、そして、好ましくは1,000,000以下、より好ましくは800,000以下、更に好ましくは400,000以下である。
成分(b1)のの重量平均分子量は、ゲル・パーミエーション・クロマトグラフィー(GPC)によりアセトニトリルと水の混合溶液(リン酸緩衝液)を展開溶媒とし、ポリエチレングリコールを標準として求めたものをいう。 The weight average molecular weight of component (b1) is preferably 50,000 or more, more preferably 100,000 or more, even more preferably 200,000 or more, and preferably 1,000,000 from the viewpoint of anti-caking property. It is more preferably 800,000 or less, still more preferably 400,000 or less.
The weight average molecular weight of component (b1) is determined by gel permeation chromatography (GPC) using a mixed solution of acetonitrile and water (phosphate buffer) as a developing solvent and polyethylene glycol as a standard.
成分(b1)のの重量平均分子量は、ゲル・パーミエーション・クロマトグラフィー(GPC)によりアセトニトリルと水の混合溶液(リン酸緩衝液)を展開溶媒とし、ポリエチレングリコールを標準として求めたものをいう。 The weight average molecular weight of component (b1) is preferably 50,000 or more, more preferably 100,000 or more, even more preferably 200,000 or more, and preferably 1,000,000 from the viewpoint of anti-caking property. It is more preferably 800,000 or less, still more preferably 400,000 or less.
The weight average molecular weight of component (b1) is determined by gel permeation chromatography (GPC) using a mixed solution of acetonitrile and water (phosphate buffer) as a developing solvent and polyethylene glycol as a standard.
成分(b2)は、本発明の効果を妨げない範囲で、酢酸ビニル以外のモノマーであって、酢酸ビニルと共重合可能なモノマーを含んだコポリマーであってもよい。酢酸ビニル以外のモノマーであって、酢酸ビニルと共重合可能なモノマーとしては、ビニル系モノマー、アクリル系モノマー、スチレン系モノマー等が挙げられる。
成分(b2)において、全構成モノマー中、酢酸ビニルの含有量は、肥料の固結防止性の観点から、好ましくは60モル%以上、より好ましくは70モル%以上、更に好ましくは80モル%以上、より更に好ましくは90モル%以上、そして、好ましくは100モル%以下であり、100モル%であってよい。 Component (b2) may be a copolymer containing a monomer other than vinyl acetate and copolymerizable with vinyl acetate, as long as the effects of the present invention are not impaired. Monomers other than vinyl acetate that can be copolymerized with vinyl acetate include vinyl monomers, acrylic monomers, styrene monomers, and the like.
In component (b2), the content of vinyl acetate in all constituent monomers is preferably 60 mol% or more, more preferably 70 mol% or more, still more preferably 80 mol% or more, from the viewpoint of anti-caking properties of the fertilizer. , more preferably 90 mol% or more, and preferably 100 mol% or less, and may be 100 mol%.
成分(b2)において、全構成モノマー中、酢酸ビニルの含有量は、肥料の固結防止性の観点から、好ましくは60モル%以上、より好ましくは70モル%以上、更に好ましくは80モル%以上、より更に好ましくは90モル%以上、そして、好ましくは100モル%以下であり、100モル%であってよい。 Component (b2) may be a copolymer containing a monomer other than vinyl acetate and copolymerizable with vinyl acetate, as long as the effects of the present invention are not impaired. Monomers other than vinyl acetate that can be copolymerized with vinyl acetate include vinyl monomers, acrylic monomers, styrene monomers, and the like.
In component (b2), the content of vinyl acetate in all constituent monomers is preferably 60 mol% or more, more preferably 70 mol% or more, still more preferably 80 mol% or more, from the viewpoint of anti-caking properties of the fertilizer. , more preferably 90 mol% or more, and preferably 100 mol% or less, and may be 100 mol%.
成分(b2)の重量平均分子量は、肥料の固結防止性の観点から、好ましくは10,000以上、より好ましくは100,000以上、更に好ましくは300,000以上、そして、好ましくは1,000,000以下、より好ましくは800,000以下、更に好ましくは500,000以下、より更に好ましくは300,000以下である。
成分(b2)のの重量平均分子量は、ゲル・パーミエーション・クロマトグラフィー(GPC)によりアセトニトリルと水の混合溶液(リン酸緩衝液)を展開溶媒とし、ポリエチレングリコールを標準として求めたものをいう。 The weight average molecular weight of component (b2) is preferably 10,000 or more, more preferably 100,000 or more, still more preferably 300,000 or more, and preferably 1,000 or more, from the viewpoint of anti-caking properties of the fertilizer. ,000 or less, more preferably 800,000 or less, still more preferably 500,000 or less, even more preferably 300,000 or less.
The weight average molecular weight of component (b2) is determined by gel permeation chromatography (GPC) using a mixed solution of acetonitrile and water (phosphate buffer) as a developing solvent and polyethylene glycol as a standard.
成分(b2)のの重量平均分子量は、ゲル・パーミエーション・クロマトグラフィー(GPC)によりアセトニトリルと水の混合溶液(リン酸緩衝液)を展開溶媒とし、ポリエチレングリコールを標準として求めたものをいう。 The weight average molecular weight of component (b2) is preferably 10,000 or more, more preferably 100,000 or more, still more preferably 300,000 or more, and preferably 1,000 or more, from the viewpoint of anti-caking properties of the fertilizer. ,000 or less, more preferably 800,000 or less, still more preferably 500,000 or less, even more preferably 300,000 or less.
The weight average molecular weight of component (b2) is determined by gel permeation chromatography (GPC) using a mixed solution of acetonitrile and water (phosphate buffer) as a developing solvent and polyethylene glycol as a standard.
<成分(c)>
本発明の成分(c)は、ジメチルアルキルアミン(以下、成分(c1)という)及び分子量が50以上200以下であり、水酸基の価数が2以上6以下の多価アルコール(以下、成分(c2)という)から選ばれる1種以上である。 <Component (c)>
Component (c) of the present invention includes dimethylalkylamine (hereinafter referred to as component (c1)) and a polyhydric alcohol having a molecular weight of 50 to 200 and a hydroxyl group valency of 2 to 6 (hereinafter referred to as component (c2)). )).
本発明の成分(c)は、ジメチルアルキルアミン(以下、成分(c1)という)及び分子量が50以上200以下であり、水酸基の価数が2以上6以下の多価アルコール(以下、成分(c2)という)から選ばれる1種以上である。 <Component (c)>
Component (c) of the present invention includes dimethylalkylamine (hereinafter referred to as component (c1)) and a polyhydric alcohol having a molecular weight of 50 to 200 and a hydroxyl group valency of 2 to 6 (hereinafter referred to as component (c2)). )).
成分(c1)のアルキル基の炭素数は、肥料の固結防止性の観点から、好ましくは8以上、より好ましくは12以上、更に好ましくは14以上、より更に好ましくは16以上、そして、好ましくは22以下、より好ましくは18以下である。
成分(c1)のアルキル基は、直鎖又は分岐鎖であり、好ましくは直鎖である。
成分(c1)としては、ジメチルオクチルアミン、ジメチルデシルアミン、ジメチルラウリルアミン、ジメチルベヘニルアミン、ジメチルココナットアミン、ジメチルミリスチルアミン、ジメチルパルミチルアミン、及びジメチルステアリルアミンから選ばれる1種以上が挙げられる。
成分(c1)は、肥料の固結防止性の観点からジメチルラウリルアミン、ジメチルミリスチルアミン、ジメチルパルミチルアミン、及びジメチルステアリルアミンから選ばれる1種以上が好ましく、ジメチルステアリルアミンがより好ましい。 The number of carbon atoms in the alkyl group of component (c1) is preferably 8 or more, more preferably 12 or more, still more preferably 14 or more, even more preferably 16 or more, and preferably It is 22 or less, more preferably 18 or less.
The alkyl group of component (c1) is linear or branched, preferably linear.
Component (c1) includes one or more selected from dimethyloctylamine, dimethyldecylamine, dimethyllaurylamine, dimethylbehenylamine, dimethylcoconutamine, dimethylmyristylamine, dimethylpalmitylamine, and dimethylstearylamine. .
Component (c1) is preferably one or more selected from dimethyllaurylamine, dimethylmyristylamine, dimethylpalmitylamine, and dimethylstearylamine, and more preferably dimethylstearylamine, from the viewpoint of anti-caking properties of the fertilizer.
成分(c1)のアルキル基は、直鎖又は分岐鎖であり、好ましくは直鎖である。
成分(c1)としては、ジメチルオクチルアミン、ジメチルデシルアミン、ジメチルラウリルアミン、ジメチルベヘニルアミン、ジメチルココナットアミン、ジメチルミリスチルアミン、ジメチルパルミチルアミン、及びジメチルステアリルアミンから選ばれる1種以上が挙げられる。
成分(c1)は、肥料の固結防止性の観点からジメチルラウリルアミン、ジメチルミリスチルアミン、ジメチルパルミチルアミン、及びジメチルステアリルアミンから選ばれる1種以上が好ましく、ジメチルステアリルアミンがより好ましい。 The number of carbon atoms in the alkyl group of component (c1) is preferably 8 or more, more preferably 12 or more, still more preferably 14 or more, even more preferably 16 or more, and preferably It is 22 or less, more preferably 18 or less.
The alkyl group of component (c1) is linear or branched, preferably linear.
Component (c1) includes one or more selected from dimethyloctylamine, dimethyldecylamine, dimethyllaurylamine, dimethylbehenylamine, dimethylcoconutamine, dimethylmyristylamine, dimethylpalmitylamine, and dimethylstearylamine. .
Component (c1) is preferably one or more selected from dimethyllaurylamine, dimethylmyristylamine, dimethylpalmitylamine, and dimethylstearylamine, and more preferably dimethylstearylamine, from the viewpoint of anti-caking properties of the fertilizer.
成分(c2)の分子量は、肥料の固結性防止の観点から、50以上、好ましくは60以上、より好ましくは70以上、そして、200以下、好ましくは190以下、より好ましくは180g/mol以下、更に好ましくは150以下、より更に好ましくは120以下である。
成分(c2)の水酸基の価数は、肥料の固結性防止の観点から、2以上、そして、6以下、好ましくは4以下である。 From the viewpoint of preventing fertilizer caking, the molecular weight of component (c2) is 50 or more, preferably 60 or more, more preferably 70 or more, and 200 or less, preferably 190 or less, more preferably 180 g/mol or less, More preferably it is 150 or less, even more preferably 120 or less.
The valence of the hydroxyl group in component (c2) is 2 or more and 6 or less, preferably 4 or less, from the viewpoint of preventing caking of the fertilizer.
成分(c2)の水酸基の価数は、肥料の固結性防止の観点から、2以上、そして、6以下、好ましくは4以下である。 From the viewpoint of preventing fertilizer caking, the molecular weight of component (c2) is 50 or more, preferably 60 or more, more preferably 70 or more, and 200 or less, preferably 190 or less, more preferably 180 g/mol or less, More preferably it is 150 or less, even more preferably 120 or less.
The valence of the hydroxyl group in component (c2) is 2 or more and 6 or less, preferably 4 or less, from the viewpoint of preventing caking of the fertilizer.
成分(c2)としては、エチレングリコール(分子量62.07;水酸基価数2)、プロピレングリコール(分子量76.09;水酸基価数2)、ジエチレングリコール(分子量106.12;水酸基価数2)、ジプロピレングリコール(分子量134.17;水酸基価数2)、グリセリン(分子量92.09;水酸基価数3)、キシリトール(分子量152.15;水酸基価数5)、マンニトール(分子量182.17;水酸基価数6)、ソルビトール(分子量182.17;水酸基価数6)から選ばれる1種以上が挙げられる。
成分(c2)は、肥料の固結防止性の観点から、エチレングリコール、ジエチレングリコール、グリセリン、及びソルビトールから選ばれる1種以上が好ましく、ジエチレングリコール、グリセリン、及びソルビトールから選ばれる1種以上がより好ましい。 Component (c2) includes ethylene glycol (molecular weight 62.07; hydroxyl number 2), propylene glycol (molecular weight 76.09; hydroxyl number 2), diethylene glycol (molecular weight 106.12; hydroxyl number 2), dipropylene. Glycol (molecular weight 134.17; hydroxyl number 2), glycerin (molecular weight 92.09; hydroxyl number 3), xylitol (molecular weight 152.15; hydroxyl number 5), mannitol (molecular weight 182.17; hydroxyl number 6) ), sorbitol (molecular weight 182.17; hydroxyl value number 6).
From the viewpoint of anti-caking properties of the fertilizer, component (c2) is preferably one or more selected from ethylene glycol, diethylene glycol, glycerin, and sorbitol, and more preferably one or more selected from diethylene glycol, glycerin, and sorbitol.
成分(c2)は、肥料の固結防止性の観点から、エチレングリコール、ジエチレングリコール、グリセリン、及びソルビトールから選ばれる1種以上が好ましく、ジエチレングリコール、グリセリン、及びソルビトールから選ばれる1種以上がより好ましい。 Component (c2) includes ethylene glycol (molecular weight 62.07; hydroxyl number 2), propylene glycol (molecular weight 76.09; hydroxyl number 2), diethylene glycol (molecular weight 106.12; hydroxyl number 2), dipropylene. Glycol (molecular weight 134.17; hydroxyl number 2), glycerin (molecular weight 92.09; hydroxyl number 3), xylitol (molecular weight 152.15; hydroxyl number 5), mannitol (molecular weight 182.17; hydroxyl number 6) ), sorbitol (molecular weight 182.17; hydroxyl value number 6).
From the viewpoint of anti-caking properties of the fertilizer, component (c2) is preferably one or more selected from ethylene glycol, diethylene glycol, glycerin, and sorbitol, and more preferably one or more selected from diethylene glycol, glycerin, and sorbitol.
成分(c2)は、肥料の固結性防止の観点から、25℃で液体の多価アルコールが好ましい。
25℃で液体の多価アルコールとしては、エチレングリコール(融点;-13℃)、プロピレングリコール(融点;-59℃)、ジエチレングリコール(融点;-8℃)、ジプロピレングリコール(融点;-39℃)、及びグリセリン(融点;-39℃)から選ばれる1種以上が挙げられる。 From the viewpoint of preventing caking of the fertilizer, component (c2) is preferably a polyhydric alcohol that is liquid at 25°C.
Polyhydric alcohols that are liquid at 25°C include ethylene glycol (melting point: -13°C), propylene glycol (melting point: -59°C), diethylene glycol (melting point: -8°C), and dipropylene glycol (melting point: -39°C). , and glycerin (melting point: -39°C).
25℃で液体の多価アルコールとしては、エチレングリコール(融点;-13℃)、プロピレングリコール(融点;-59℃)、ジエチレングリコール(融点;-8℃)、ジプロピレングリコール(融点;-39℃)、及びグリセリン(融点;-39℃)から選ばれる1種以上が挙げられる。 From the viewpoint of preventing caking of the fertilizer, component (c2) is preferably a polyhydric alcohol that is liquid at 25°C.
Polyhydric alcohols that are liquid at 25°C include ethylene glycol (melting point: -13°C), propylene glycol (melting point: -59°C), diethylene glycol (melting point: -8°C), and dipropylene glycol (melting point: -39°C). , and glycerin (melting point: -39°C).
<組成等>
本発明の肥料用固結防止剤組成物は、成分(a)を、肥料用固結防止剤組成物の均一混合性の観点から、好ましくは1質量%以上、より好ましくは5質量%以上、更に好ましくは10質量%以上、より更に好ましくは15質量%以上、そして、好ましくは30質量%以下、より好ましくは25質量%以下、更に好ましくは20質量%以下、より更に好ましくは19質量%以下含有する。
なお本発明において、成分(a)の質量に関する規定は、ナトリウム塩に換算した値を用いることとする。 <Composition, etc.>
The anti-caking agent composition for fertilizers of the present invention contains component (a), preferably at least 1% by mass, more preferably at least 5% by mass, from the viewpoint of uniform mixability of the anti-caking agent composition for fertilizers. More preferably 10% by mass or more, even more preferably 15% by mass or more, and preferably 30% by mass or less, more preferably 25% by mass or less, still more preferably 20% by mass or less, even more preferably 19% by mass or less. contains.
In the present invention, the mass of component (a) is defined using a value converted to sodium salt.
本発明の肥料用固結防止剤組成物は、成分(a)を、肥料用固結防止剤組成物の均一混合性の観点から、好ましくは1質量%以上、より好ましくは5質量%以上、更に好ましくは10質量%以上、より更に好ましくは15質量%以上、そして、好ましくは30質量%以下、より好ましくは25質量%以下、更に好ましくは20質量%以下、より更に好ましくは19質量%以下含有する。
なお本発明において、成分(a)の質量に関する規定は、ナトリウム塩に換算した値を用いることとする。 <Composition, etc.>
The anti-caking agent composition for fertilizers of the present invention contains component (a), preferably at least 1% by mass, more preferably at least 5% by mass, from the viewpoint of uniform mixability of the anti-caking agent composition for fertilizers. More preferably 10% by mass or more, even more preferably 15% by mass or more, and preferably 30% by mass or less, more preferably 25% by mass or less, still more preferably 20% by mass or less, even more preferably 19% by mass or less. contains.
In the present invention, the mass of component (a) is defined using a value converted to sodium salt.
本発明の肥料用固結防止剤組成物は、成分(b)を、肥料の固結防止性の観点から、好ましくは0.1質量%以上、より好ましくは0.5質量%以上、更に好ましくは1質量%以上、より更に好ましくは2質量%以上、そして、好ましくは15質量%以下、より好ましくは12質量%以下、更に好ましくは10質量%以下、より更に好ましくは5質量%以下、より更に好ましくは4質量%以下含有する。
The anti-caking agent composition for fertilizers of the present invention contains component (b), preferably 0.1% by mass or more, more preferably 0.5% by mass or more, even more preferably is 1% by mass or more, even more preferably 2% by mass or more, and preferably 15% by mass or less, more preferably 12% by mass or less, still more preferably 10% by mass or less, even more preferably 5% by mass or less, and more preferably More preferably, the content is 4% by mass or less.
本発明の肥料用固結防止剤組成物は、成分(c)を、肥料の固結防止性の観点から、好ましくは0.5質量%以上、より好ましくは1質量%以上、更に好ましくは1.5質量%以上、より更に好ましくは2質量%以上、そして、好ましくは30質量%以下、より好ましくは20質量%以下、更に好ましくは15質量%以下、より更に好ましくは10質量%以下含有する。
The anti-caking agent composition for fertilizers of the present invention preferably contains component (c) in an amount of 0.5% by mass or more, more preferably 1% by mass or more, still more preferably 1% by mass, from the viewpoint of anti-caking properties of fertilizers. Contains .5% by mass or more, even more preferably 2% by mass or more, and preferably 30% by mass or less, more preferably 20% by mass or less, still more preferably 15% by mass or less, even more preferably 10% by mass or less. .
本発明の肥料用固結防止剤組成物は、成分(c1)を含有する場合、成分(c1)を、肥料の固結防止性の観点から、好ましくは0.5質量%以上、より好ましくは1質量%以上、更に好ましくは1.5質量%以上、より更に好ましくは2質量%以上、そして、好ましくは5質量%以下、より好ましくは4質量%以下、更に好ましくは3質量%以下含有する。
When the anti-caking agent composition for fertilizers of the present invention contains component (c1), the content of component (c1) is preferably 0.5% by mass or more, more preferably Contains 1% by mass or more, more preferably 1.5% by mass or more, even more preferably 2% by mass or more, and preferably 5% by mass or less, more preferably 4% by mass or less, still more preferably 3% by mass or less. .
本発明の肥料用固結防止剤組成物は、成分(c2)を含有する場合、成分(c2)を、肥料の固結防止性の観点から、好ましくは0.5質量%以上、より好ましくは1質量%以上、更に好ましくは1.5質量%以上、より更に好ましくは5質量%以上、より更に好ましくは8質量%以上、そして、好ましくは20質量%以下、より好ましくは15質量%以下、更に好ましくは12質量%以下、より更に好ましくは10質量%以下含有する。
When the anti-caking agent composition for fertilizers of the present invention contains component (c2), the content of component (c2) is preferably 0.5% by mass or more, more preferably 1% by mass or more, more preferably 1.5% by mass or more, even more preferably 5% by mass or more, even more preferably 8% by mass or more, and preferably 20% by mass or less, more preferably 15% by mass or less, The content is more preferably 12% by mass or less, even more preferably 10% by mass or less.
本発明の肥料用固結防止剤組成物において、成分(a)の含有量と成分(c)の含有量との質量比(c)/(a)は、肥料の固結防止性の観点から、好ましくは0.05以上、より好ましくは0.06以上、更に好ましくは0.07以上、そして、好ましくは3以下、より好ましくは2以下、更に好ましくは1以下、より更に好ましくは0.6以下、より更に好ましくは0.3以下である。
In the anti-caking agent composition for fertilizers of the present invention, the mass ratio (c)/(a) between the content of component (a) and the content of component (c) is determined from the viewpoint of anti-caking properties of the fertilizer. , preferably 0.05 or more, more preferably 0.06 or more, even more preferably 0.07 or more, and preferably 3 or less, more preferably 2 or less, still more preferably 1 or less, even more preferably 0.6 Below, it is still more preferably 0.3 or less.
本発明の肥料用固結防止剤組成物において、成分(c1)を含有する場合、成分(a)の含有量と成分(c1)の含有量との質量比(c1)/(a)は、肥料の固結防止性の観点から、好ましくは0.05以上、より好ましくは0.06以上、更に好ましくは0.07以上、そして、好ましくは3以下、より好ましくは2以下、更に好ましくは1以下、より更に好ましくは0.6以下、より更に好ましくは0.3以下である。
When the anti-caking agent composition for fertilizers of the present invention contains component (c1), the mass ratio (c1)/(a) of the content of component (a) and the content of component (c1) is: From the viewpoint of anti-caking properties of fertilizer, it is preferably 0.05 or more, more preferably 0.06 or more, even more preferably 0.07 or more, and preferably 3 or less, more preferably 2 or less, still more preferably 1 Below, it is still more preferably 0.6 or less, even more preferably 0.3 or less.
本発明の肥料用固結防止剤組成物において、成分(c2)を含有する場合、成分(a)の含有量と成分(c2)の含有量との質量比(c2)/(a)は、肥料の固結防止性の観点から、好ましくは0.05以上、より好ましくは0.06以上、更に好ましくは0.07以上、そして、好ましくは15以下、より好ましくは12以下、更に好ましくは10以下、より更に好ましくは3以下である。
When the anti-caking agent composition for fertilizers of the present invention contains component (c2), the mass ratio (c2)/(a) of the content of component (a) and the content of component (c2) is: From the viewpoint of anti-caking properties of fertilizer, it is preferably 0.05 or more, more preferably 0.06 or more, even more preferably 0.07 or more, and preferably 15 or less, more preferably 12 or less, even more preferably 10 Below, it is still more preferably 3 or less.
本発明の肥料用固結防止剤組成物において、成分(a)及び成分(c)の合計含有量と成分(b)の含有量との質量比(b)/[(a)+(c)]は、肥料の固結防止性の観点から、好ましくは0.01以上、より好ましくは0.02以上、更に好ましくは0.03以上、そして、好ましくは1.5以下、より好ましくは1.0以下、更に好ましくは0.5以下である。
In the anti-caking agent composition for fertilizers of the present invention, the mass ratio of the total content of component (a) and component (c) to the content of component (b) (b)/[(a)+(c) ] is preferably 0.01 or more, more preferably 0.02 or more, even more preferably 0.03 or more, and preferably 1.5 or less, more preferably 1. It is 0 or less, more preferably 0.5 or less.
本発明の肥料用固結防止剤組成物において、成分(c1)を含有する場合、成分(a)及び成分(c1)の合計含有量と成分(b)の含有量との質量比(b)/[(a)+(c1)]は、肥料の固結防止性の観点から、好ましくは0.01以上、より好ましくは0.02以上、更に好ましくは0.03以上、そして、好ましくは1.5以下、より好ましくは1.0以下、更に好ましくは0.7以下、より更に好ましくは0.5以下である。
When the anti-caking agent composition for fertilizer of the present invention contains component (c1), the mass ratio (b) of the total content of component (a) and component (c1) to the content of component (b) /[(a)+(c1)] is preferably 0.01 or more, more preferably 0.02 or more, even more preferably 0.03 or more, and preferably 1 .5 or less, more preferably 1.0 or less, still more preferably 0.7 or less, even more preferably 0.5 or less.
本発明の肥料用固結防止剤組成物において、成分(c2)を含有する場合、成分(a)及び成分(c2)の合計含有量と成分(b)の含有量との質量比(b)/[(a)+(c2)]は、肥料の固結防止性の観点から、好ましくは0.01以上、より好ましくは0.02以上、更に好ましくは0.03以上、そして、好ましくは1.5以下、より好ましくは1.0以下、更に好ましくは0.7以下、より更に好ましくは0.5以下である。
When the anti-caking agent composition for fertilizer of the present invention contains component (c2), the mass ratio (b) of the total content of component (a) and component (c2) to the content of component (b) /[(a)+(c2)] is preferably 0.01 or more, more preferably 0.02 or more, still more preferably 0.03 or more, and preferably 1 .5 or less, more preferably 1.0 or less, still more preferably 0.7 or less, even more preferably 0.5 or less.
本発明の肥料用固結防止剤組成物は、水を含有する。すなわち本発明の肥料用固結防止剤組成物は、水を含有する液体組成物である。水は、特に限定するものではないが、水道水、井戸水、イオン交換水、蒸留水等が挙げられる。本発明の肥料用固結防止剤組成物は、水を、好ましくは20質量%以上、より好ましくは30質量%以上、更に好ましくは40質量%以上、より更に好ましくは50質量%以上、より更に好ましくは60質量%以上、そして、好ましくは98質量%以下、より好ましくは96質量%以下、更に好ましくは80質量%以下含有する。
The anti-caking agent composition for fertilizers of the present invention contains water. That is, the anti-caking agent composition for fertilizer of the present invention is a liquid composition containing water. Examples of water include, but are not limited to, tap water, well water, ion exchange water, distilled water, and the like. The anti-caking agent composition for fertilizers of the present invention contains water preferably at least 20% by mass, more preferably at least 30% by mass, still more preferably at least 40% by mass, even more preferably at least 50% by mass, and even more preferably at least 50% by mass. The content is preferably 60% by mass or more, and preferably 98% by mass or less, more preferably 96% by mass or less, and still more preferably 80% by mass or less.
本発明の肥料用固結防止剤組成物は、本発明の効果を妨げない範囲で、その他成分として、各種鉱石粉砕品、各種油類、でんぷん類などの成分(但し、成分(a)、成分(b)、成分(c)を除く)を含有することができる。
The anti-caking agent composition for fertilizers of the present invention may contain other ingredients such as various crushed ore products, various oils, and starches (with the exception of ingredient (a), ingredient (b), excluding component (c)).
本発明の肥料用固結防止剤組成物の25℃における粘度は、肥料表面に対する均一被覆の観点から、好ましくは500mPa・s以下、より好ましくは300mPa・s以下、更に好ましくは200mPa・s以下である。粘度の下限値は0mPa・s以上であってよい。この粘度は、B型粘度計を用いて30℃で測定されたものである。
The viscosity at 25°C of the anti-caking agent composition for fertilizers of the present invention is preferably 500 mPa·s or less, more preferably 300 mPa·s or less, still more preferably 200 mPa·s or less, from the viewpoint of uniformly coating the fertilizer surface. be. The lower limit of the viscosity may be 0 mPa·s or more. This viscosity was measured at 30°C using a B-type viscometer.
本発明の肥料用固結防止剤組成物は、肥料成分の粒子表面に被覆処理することで、肥料成分の固結防止に用いることができる。肥料成分は、下記の本発明の肥料組成物に記載した態様と同じである。
The anti-caking agent composition for fertilizers of the present invention can be used to prevent caking of fertilizer components by coating the particle surfaces of the fertilizer components. The fertilizer components are the same as those described in the fertilizer composition of the present invention below.
[肥料組成物及びその製造方法]
本発明は、本発明の肥料用固結防止剤組成物、及び肥料成分を含有する、肥料組成物を提供する。
また本発明は、成分(a)、成分(b)、成分(c)、及び肥料成分を含有する、肥料組成物を提供する。
本発明の肥料組成物は、本発明の肥料用固結防止剤組成物に記載した態様を適宜適用することができる。成分(a)、成分(b)、成分(c)、及び各成分の質量比に関する規定は、本発明の肥料用固結防止剤組成物に記載した態様と同じである。 [Fertilizer composition and method for producing the same]
The present invention provides a fertilizer composition containing the anti-caking agent composition for fertilizer of the present invention and a fertilizer component.
The present invention also provides a fertilizer composition containing component (a), component (b), component (c), and fertilizer components.
The fertilizer composition of the present invention can appropriately apply the embodiments described in the anti-caking agent composition for fertilizers of the present invention. The regulations regarding component (a), component (b), component (c), and the mass ratio of each component are the same as those described in the anti-caking agent composition for fertilizer of the present invention.
本発明は、本発明の肥料用固結防止剤組成物、及び肥料成分を含有する、肥料組成物を提供する。
また本発明は、成分(a)、成分(b)、成分(c)、及び肥料成分を含有する、肥料組成物を提供する。
本発明の肥料組成物は、本発明の肥料用固結防止剤組成物に記載した態様を適宜適用することができる。成分(a)、成分(b)、成分(c)、及び各成分の質量比に関する規定は、本発明の肥料用固結防止剤組成物に記載した態様と同じである。 [Fertilizer composition and method for producing the same]
The present invention provides a fertilizer composition containing the anti-caking agent composition for fertilizer of the present invention and a fertilizer component.
The present invention also provides a fertilizer composition containing component (a), component (b), component (c), and fertilizer components.
The fertilizer composition of the present invention can appropriately apply the embodiments described in the anti-caking agent composition for fertilizers of the present invention. The regulations regarding component (a), component (b), component (c), and the mass ratio of each component are the same as those described in the anti-caking agent composition for fertilizer of the present invention.
肥料成分としては、具体的には、窒素、リン、カリウム、カルシウム、マグネシウム、イオウ、ホウ素、鉄、マンガン、銅、亜鉛、モリブデン、塩素、ケイ素、ナトリウム等、特に窒素、リン、カリウム、カルシウム、マグネシウムの供給源となる無機物及び有機物が挙げられる。そのような無機物としては、硝酸アンモニウム、硝酸カリウム、硫酸アンモニウム、塩化アンモニウム、リン酸アンモニウム、硝酸ソーダ、尿素、炭酸アンモニウム、リン酸カリウム、過リン酸石灰、熔成リン肥(3MgO・CaO・P2O5・3CaSiO2)、硫酸カリウム、塩カリ、硝酸石灰、消石灰、炭酸石灰、硫酸マグネシウム、水酸化マグネシウム、炭酸マグネシウム等が挙げられる。また、有機物としては、鶏フン、牛フン、バーク堆肥、アミノ酸、ペプトン、ミエキ、発酵エキス、有機酸(クエン酸、グルコン酸、コハク酸等)のカルシウム塩、脂肪酸(ギ酸、酢酸、プロピオン酸、カプリル酸、カプリン酸、カプロン酸等)のカルシウム塩等が挙げられる。
Specifically, fertilizer components include nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, iron, manganese, copper, zinc, molybdenum, chlorine, silicon, sodium, etc., especially nitrogen, phosphorus, potassium, calcium, Examples include inorganic substances and organic substances that serve as sources of magnesium. Such inorganic substances include ammonium nitrate, potassium nitrate, ammonium sulfate, ammonium chloride, ammonium phosphate, sodium nitrate, urea, ammonium carbonate, potassium phosphate, lime superphosphate, and fused phosphorus fertilizer (3MgO・CaO・P 2 O 5 -3CaSiO 2 ), potassium sulfate, potassium salt, lime nitrate, slaked lime, lime carbonate, magnesium sulfate, magnesium hydroxide, magnesium carbonate, and the like. In addition, organic substances include chicken manure, cow manure, bark compost, amino acids, peptone, millet extract, fermented extract, calcium salts of organic acids (citric acid, gluconic acid, succinic acid, etc.), fatty acids (formic acid, acetic acid, propionic acid, Examples include calcium salts of caprylic acid, capric acid, caproic acid, etc.).
肥料成分は、固体の粒子である。肥料成分の平均粒径は、固結防止性の観点から、好ましくは0.01mm以上、より好ましくは0.1mm以上、更に好ましくは1mm以上、そして、好ましくは10mm以下、より好ましくは5mm以下である。肥料成分の平均粒径は、光学顕微鏡で観察した、無作為に抽出した100個の粒子に基づく数平均径である。長径と短径がある場合は、長径を測定する。
Fertilizer components are solid particles. From the viewpoint of anti-caking properties, the average particle size of the fertilizer component is preferably 0.01 mm or more, more preferably 0.1 mm or more, even more preferably 1 mm or more, and preferably 10 mm or less, more preferably 5 mm or less. be. The average particle size of the fertilizer component is the number average size based on 100 randomly selected particles observed with an optical microscope. If there is a major axis and a minor axis, measure the major axis.
本発明の肥料組成物は、本発明の肥料用固結防止剤組成物を、肥料の固結防止性の観点から、肥料成分の質量に対して、好ましくは50ppm以上、より好ましくは100ppm以上、更に好ましくは200ppm以上、より更に好ましくは1,000ppm以上、より更に好ましくは2,000ppm以上、そして、好ましくは5,000ppm以下、より好ましくは4,000ppm以下、更に好ましくは3,000ppm以下含有する。
The fertilizer composition of the present invention contains the anti-caking agent composition for fertilizer of the present invention in an amount of preferably 50 ppm or more, more preferably 100 ppm or more, based on the mass of the fertilizer component, from the viewpoint of the anti-caking property of the fertilizer. More preferably, it contains 200 ppm or more, even more preferably 1,000 ppm or more, even more preferably 2,000 ppm or more, and preferably 5,000 ppm or less, more preferably 4,000 ppm or less, and even more preferably 3,000 ppm or less. .
本発明の肥料組成物は、成分(a)を、肥料の固結防止性の観点から、肥料成分の質量に対して、好ましくは20ppm以上、より好ましくは100ppm以上、更に好ましくは300ppm以上、そして、好ましくは600ppm以下、より好ましくは500ppm以下、更に好ましくは400ppm以下含有する。
The fertilizer composition of the present invention preferably contains component (a) in an amount of 20 ppm or more, more preferably 100 ppm or more, still more preferably 300 ppm or more, based on the mass of the fertilizer component, from the viewpoint of anti-caking properties of the fertilizer. , preferably 600 ppm or less, more preferably 500 ppm or less, still more preferably 400 ppm or less.
本発明の肥料組成物は、成分(b)を、肥料の固結防止性の観点から、肥料成分の質量に対して、好ましくは20ppm以上、より好ましくは40ppm以上、更に好ましくは60ppm以上、そして、好ましくは300ppm以下、より好ましくは200ppm以下、更に好ましくは100ppm以下含有する。
The fertilizer composition of the present invention preferably contains component (b) in an amount of 20 ppm or more, more preferably 40 ppm or more, still more preferably 60 ppm or more, based on the mass of the fertilizer component, from the viewpoint of anti-caking properties of the fertilizer. , preferably 300 ppm or less, more preferably 200 ppm or less, still more preferably 100 ppm or less.
本発明の肥料組成物は、成分(c)を、肥料の固結防止性の観点から、肥料成分の質量に対して、好ましくは1ppm以上、より好ましくは20ppm以上、更に好ましくは40ppm以上、そして、好ましくは600ppm以下、より好ましくは400ppm以下、更に好ましくは200ppm以下含有する。
The fertilizer composition of the present invention preferably contains component (c) in an amount of 1 ppm or more, more preferably 20 ppm or more, still more preferably 40 ppm or more, based on the mass of the fertilizer component, from the viewpoint of anti-caking properties of the fertilizer. , preferably 600 ppm or less, more preferably 400 ppm or less, still more preferably 200 ppm or less.
本発明の肥料組成物は、成分(c1)を含有する場合、成分(c1)を、肥料の固結防止性の観点から、肥料成分の質量に対して、好ましくは5ppm以上、より好ましくは10ppm以上、更に好ましくは20ppm以上、そして、好ましくは100ppm以下、より好ましくは80ppm以下、更に好ましくは60ppm以下含有する。
When the fertilizer composition of the present invention contains component (c1), the amount of component (c1) is preferably 5 ppm or more, more preferably 10 ppm, based on the mass of the fertilizer component, from the viewpoint of anti-caking properties of the fertilizer. The content is more preferably 20 ppm or more, more preferably 100 ppm or less, more preferably 80 ppm or less, still more preferably 60 ppm or less.
本発明の肥料組成物は、成分(c2)を含有する場合、成分(c2)を、肥料の固結防止性の観点から、肥料成分の質量に対して、好ましくは1ppm以上、より好ましくは10ppm以上、更に好ましくは30ppm以上、そして、好ましくは400ppm以下、より好ましくは300ppm以下、更に好ましくは200ppm以下含有する。
When the fertilizer composition of the present invention contains component (c2), the amount of component (c2) is preferably 1 ppm or more, more preferably 10 ppm, based on the mass of the fertilizer component, from the viewpoint of anti-caking properties of the fertilizer. The content is more preferably 30 ppm or more, and preferably 400 ppm or less, more preferably 300 ppm or less, and still more preferably 200 ppm or less.
本発明の肥料組成物は、肥料成分の粒子表面が、本発明の肥料用固結防止剤組成物で被覆される。すなわち本発明の肥料組成物は、肥料成分の粒子表面が、成分(a)、成分(b)、及び成分(c)で被覆されることによって、肥料成分の粒子表面における吸湿、再結晶化を防止し、肥料組成物の固結性を低減することができる。
In the fertilizer composition of the present invention, the particle surfaces of fertilizer components are coated with the fertilizer anti-caking agent composition of the present invention. That is, the fertilizer composition of the present invention prevents moisture absorption and recrystallization on the particle surface of the fertilizer component by coating the particle surface of the fertilizer component with component (a), component (b), and component (c). can be prevented and the caking of the fertilizer composition can be reduced.
本発明の肥料組成物は、固体の粒子である。本発明の肥料組成物の平均粒径は、肥料の固結防止性の観点から、好ましくは0.01mm以上、より好ましくは0.1mm以上、更に好ましくは1mm以上、そして、好ましくは10mm以下、より好ましくは5mm以下である。肥料組成物の平均粒径は、光学顕微鏡で観察した、無作為に抽出した100個の粒子に基づく数平均径である。長径と短径がある場合は、長径を測定する。
The fertilizer composition of the present invention is solid particles. The average particle size of the fertilizer composition of the present invention is preferably 0.01 mm or more, more preferably 0.1 mm or more, still more preferably 1 mm or more, and preferably 10 mm or less, from the viewpoint of anti-caking properties of the fertilizer. More preferably, it is 5 mm or less. The average particle size of the fertilizer composition is the number average size based on 100 randomly selected particles observed with an optical microscope. If there is a major axis and a minor axis, measure the major axis.
本発明の肥料組成物は、本発明の肥料用固結防止剤組成物を、肥料成分の粒子表面に被覆処理して製造することが好ましい。
すなわち本発明は、本発明の肥料用固結防止剤組成物を、肥料成分の粒子表面に被覆処理する、肥料組成物の製造方法を提供する。
本発明の肥料組成物の製造方法は、本発明の肥料用固結防止剤組成物、及び肥料組成物で記載した態様を適宜適用することができる。 The fertilizer composition of the present invention is preferably produced by coating the surface of particles of fertilizer components with the anti-caking agent composition for fertilizers of the present invention.
That is, the present invention provides a method for producing a fertilizer composition, in which the surfaces of particles of fertilizer components are coated with the anti-caking agent composition for fertilizer of the present invention.
In the method for producing the fertilizer composition of the present invention, the embodiments described for the anti-caking agent composition for fertilizers and the fertilizer composition of the present invention can be applied as appropriate.
すなわち本発明は、本発明の肥料用固結防止剤組成物を、肥料成分の粒子表面に被覆処理する、肥料組成物の製造方法を提供する。
本発明の肥料組成物の製造方法は、本発明の肥料用固結防止剤組成物、及び肥料組成物で記載した態様を適宜適用することができる。 The fertilizer composition of the present invention is preferably produced by coating the surface of particles of fertilizer components with the anti-caking agent composition for fertilizers of the present invention.
That is, the present invention provides a method for producing a fertilizer composition, in which the surfaces of particles of fertilizer components are coated with the anti-caking agent composition for fertilizer of the present invention.
In the method for producing the fertilizer composition of the present invention, the embodiments described for the anti-caking agent composition for fertilizers and the fertilizer composition of the present invention can be applied as appropriate.
被覆処理する方法としては、肥料成分の粒子表面に、本発明の肥料用固結防止剤組成物を、噴霧又は塗布、好ましくは噴霧すればよい。噴霧後、乾燥空気、熱風、加熱処理等により肥料を乾燥させても良い。この方法により、肥料成分の粒子表面が、成分(a)、成分(b)、及び成分(c)で被覆された肥料組成物が製造できる。肥料成分の粒子表面に、本発明の肥料用固結防止剤組成物を、噴霧する方法は、例えば、肥料成分がベルトコンベア上に運ばれている間や、コンベアその他からストリームとなって落下している間に肥料用固結防止剤組成物を噴霧する方法が挙げられる。
As a method for coating, the anti-caking agent composition for fertilizers of the present invention may be sprayed or applied, preferably sprayed, onto the particle surface of the fertilizer component. After spraying, the fertilizer may be dried by dry air, hot air, heat treatment, etc. By this method, a fertilizer composition in which the particle surfaces of fertilizer components are coated with component (a), component (b), and component (c) can be produced. The method of spraying the anti-caking agent composition for fertilizer of the present invention onto the surface of particles of fertilizer components can be carried out, for example, while the fertilizer components are being conveyed on a belt conveyor, or when they are falling as a stream from a conveyor or the like. A method of spraying an anti-caking agent composition for fertilizer during this period is mentioned.
本発明の肥料用固結防止剤組成物の被覆処理量は、肥料成分の質量に対して、肥料の固結防止性の観点から、好ましくは500ppm以上、より好ましくは800ppm以上、更に好ましくは1,000ppm以上、より更に好ましくは2,000ppm以上、そして、好ましくは5,000ppm以下、より好ましくは4,000ppm以下、更に好ましくは3,000ppm以下である。
The coating treatment amount of the anti-caking agent composition for fertilizers of the present invention is preferably 500 ppm or more, more preferably 800 ppm or more, still more preferably 1 ,000 ppm or more, more preferably 2,000 ppm or more, and preferably 5,000 ppm or less, more preferably 4,000 ppm or less, still more preferably 3,000 ppm or less.
肥料成分の粒子表面に、本発明の肥料用固結防止剤組成物を噴霧被覆処理した後は、肥料組成物を10℃以上40℃以下の室温で乾燥させるか、肥料組成物に50℃以上200℃以下の熱風を吹きかけて乾燥させればよい。
After the particle surface of the fertilizer component is spray coated with the anti-caking agent composition for fertilizer of the present invention, the fertilizer composition is dried at a room temperature of 10°C or more and 40°C or less, or the fertilizer composition is coated with the fertilizer composition at 50°C or more. It may be dried by blowing hot air at 200°C or less.
[肥料成分の固結防止方法]
本発明は、本発明の肥料用固結防止剤組成物を、肥料成分の粒子表面に被覆処理する、肥料成分の固結防止方法を提供する。
本発明の肥料成分の固結防止方法は、本発明の肥料用固結防止剤組成物、本発明の肥料組成物、及びその製造方法に記載した態様を適宜適用することができる。本発明の肥料用固結防止剤組成物を、肥料成分の粒子表面に被覆処理する方法は、本発明の肥料組成物の製造方法に記載した態様と同じである。 [Method for preventing caking of fertilizer components]
The present invention provides a method for preventing caking of fertilizer components, which comprises coating the surfaces of particles of fertilizer components with the anti-caking agent composition for fertilizers of the present invention.
The method for preventing caking of fertilizer components of the present invention can appropriately apply the embodiments described in the anti-caking agent composition for fertilizers of the present invention, the fertilizer composition of the present invention, and the manufacturing method thereof. The method of coating the particle surface of the fertilizer component with the anti-caking agent composition for fertilizer of the present invention is the same as the embodiment described in the method for producing the fertilizer composition of the present invention.
本発明は、本発明の肥料用固結防止剤組成物を、肥料成分の粒子表面に被覆処理する、肥料成分の固結防止方法を提供する。
本発明の肥料成分の固結防止方法は、本発明の肥料用固結防止剤組成物、本発明の肥料組成物、及びその製造方法に記載した態様を適宜適用することができる。本発明の肥料用固結防止剤組成物を、肥料成分の粒子表面に被覆処理する方法は、本発明の肥料組成物の製造方法に記載した態様と同じである。 [Method for preventing caking of fertilizer components]
The present invention provides a method for preventing caking of fertilizer components, which comprises coating the surfaces of particles of fertilizer components with the anti-caking agent composition for fertilizers of the present invention.
The method for preventing caking of fertilizer components of the present invention can appropriately apply the embodiments described in the anti-caking agent composition for fertilizers of the present invention, the fertilizer composition of the present invention, and the manufacturing method thereof. The method of coating the particle surface of the fertilizer component with the anti-caking agent composition for fertilizer of the present invention is the same as the embodiment described in the method for producing the fertilizer composition of the present invention.
実施例
実施例、比較例で用いた配合成分を以下にまとめて示す。 Examples The ingredients used in Examples and Comparative Examples are summarized below.
実施例、比較例で用いた配合成分を以下にまとめて示す。 Examples The ingredients used in Examples and Comparative Examples are summarized below.
<成分(a)>
・ラウリル硫酸エステルナトリウム:「エマール 24D」、花王株式会社製 <Component (a)>
・Sodium lauryl sulfate: "Emar 24D", manufactured by Kao Corporation
・ラウリル硫酸エステルナトリウム:「エマール 24D」、花王株式会社製 <Component (a)>
・Sodium lauryl sulfate: "Emar 24D", manufactured by Kao Corporation
<成分(b)>
・スチレン-2-エチルヘキシルアクリレートコポリマー:成分(b1)、「EBL6948」、Eternal社製、モル比(スチレン/アクリル酸エステル)0.77、重量平均分子量30万
・ポリ酢酸ビニル:成分(b2)、「ALFACOAT 5408AC」、ALFA POLIMER社製、重量平均分子量20万 <Component (b)>
・Styrene-2-ethylhexyl acrylate copolymer: component (b1), "EBL6948", manufactured by Eternal, molar ratio (styrene/acrylic acid ester) 0.77, weight average molecular weight 300,000 ・Polyvinyl acetate: component (b2), "ALFACOAT 5408AC", manufactured by ALFA POLIMER, weight average molecular weight 200,000
・スチレン-2-エチルヘキシルアクリレートコポリマー:成分(b1)、「EBL6948」、Eternal社製、モル比(スチレン/アクリル酸エステル)0.77、重量平均分子量30万
・ポリ酢酸ビニル:成分(b2)、「ALFACOAT 5408AC」、ALFA POLIMER社製、重量平均分子量20万 <Component (b)>
・Styrene-2-ethylhexyl acrylate copolymer: component (b1), "EBL6948", manufactured by Eternal, molar ratio (styrene/acrylic acid ester) 0.77, weight average molecular weight 300,000 ・Polyvinyl acetate: component (b2), "ALFACOAT 5408AC", manufactured by ALFA POLIMER, weight average molecular weight 200,000
<成分(c)>
・ジメチルステアリルアミン:成分(c1)、「ファーミン DM8098」花王株式会社製
・ジメチルパルミチルアミン:成分(c1)、「ファーミン DM6098」花王株式会社製
・ジメチルミリスチルアミン:成分(c1)、「ファーミン DM4098」花王株式会社製
・ジメチルラウリルアミン:成分(c1)、「ファーミン DM2098」花王株式会社製
・グリセリン:成分(c2)、分子量92.09、水酸基価数3、Wilmer社製
・ソルビトール:成分(c2)、分子量182.17、水酸基価数6、花王株式会社製
・ジエチレングリコール:成分(c2)、分子量106.12、水酸基価数2、富士フィルム和光純薬株式会社製
・エチレングリコール:成分(c2)、分子量62.07、水酸基価数2、富士フィルム和光純薬株式会社製 <Component (c)>
・Dimethylstearylamine: Ingredient (c1), "Pharmin DM8098" manufactured by Kao Corporation ・Dimethylpalmitylamine: Component (c1), "Pharmin DM6098" manufactured by Kao Corporation ・Dimethylmyristylamine: Component (c1), "Pharmin DM4098" ” Manufactured by Kao Corporation, dimethyl laurylamine: component (c1), “Pharmin DM2098” manufactured by Kao Corporation, glycerin: component (c2), molecular weight 92.09, number of hydroxyl groups 3, manufactured by Wilmer Corporation, sorbitol: component (c2) ), molecular weight 182.17, hydroxyl number 6, manufactured by Kao Corporation, diethylene glycol: component (c2), molecular weight 106.12, hydroxyl number 2, manufactured by Fuji Film Wako Pure Chemical Industries, Ltd., ethylene glycol: component (c2) , molecular weight 62.07, hydroxyl value number 2, manufactured by Fuji Film Wako Pure Chemical Industries, Ltd.
・ジメチルステアリルアミン:成分(c1)、「ファーミン DM8098」花王株式会社製
・ジメチルパルミチルアミン:成分(c1)、「ファーミン DM6098」花王株式会社製
・ジメチルミリスチルアミン:成分(c1)、「ファーミン DM4098」花王株式会社製
・ジメチルラウリルアミン:成分(c1)、「ファーミン DM2098」花王株式会社製
・グリセリン:成分(c2)、分子量92.09、水酸基価数3、Wilmer社製
・ソルビトール:成分(c2)、分子量182.17、水酸基価数6、花王株式会社製
・ジエチレングリコール:成分(c2)、分子量106.12、水酸基価数2、富士フィルム和光純薬株式会社製
・エチレングリコール:成分(c2)、分子量62.07、水酸基価数2、富士フィルム和光純薬株式会社製 <Component (c)>
・Dimethylstearylamine: Ingredient (c1), "Pharmin DM8098" manufactured by Kao Corporation ・Dimethylpalmitylamine: Component (c1), "Pharmin DM6098" manufactured by Kao Corporation ・Dimethylmyristylamine: Component (c1), "Pharmin DM4098" ” Manufactured by Kao Corporation, dimethyl laurylamine: component (c1), “Pharmin DM2098” manufactured by Kao Corporation, glycerin: component (c2), molecular weight 92.09, number of hydroxyl groups 3, manufactured by Wilmer Corporation, sorbitol: component (c2) ), molecular weight 182.17, hydroxyl number 6, manufactured by Kao Corporation, diethylene glycol: component (c2), molecular weight 106.12, hydroxyl number 2, manufactured by Fuji Film Wako Pure Chemical Industries, Ltd., ethylene glycol: component (c2) , molecular weight 62.07, hydroxyl value number 2, manufactured by Fuji Film Wako Pure Chemical Industries, Ltd.
[肥料用固結防止剤組成物の調製]
所定量の水と成分(b)の乳化液を混合し、50℃で30分間攪拌した。この混合液にさらに成分(c)を添加し、50℃で30分間さらに攪拌した。その後、この混合液にさらに成分(a)を加えて、60分間攪拌し、肥料用固結防止剤組成物を得た。 [Preparation of anti-caking agent composition for fertilizer]
A predetermined amount of water and an emulsion of component (b) were mixed and stirred at 50°C for 30 minutes. Component (c) was further added to this mixed solution, and the mixture was further stirred at 50° C. for 30 minutes. Thereafter, component (a) was further added to this liquid mixture and stirred for 60 minutes to obtain an anti-caking agent composition for fertilizer.
所定量の水と成分(b)の乳化液を混合し、50℃で30分間攪拌した。この混合液にさらに成分(c)を添加し、50℃で30分間さらに攪拌した。その後、この混合液にさらに成分(a)を加えて、60分間攪拌し、肥料用固結防止剤組成物を得た。 [Preparation of anti-caking agent composition for fertilizer]
A predetermined amount of water and an emulsion of component (b) were mixed and stirred at 50°C for 30 minutes. Component (c) was further added to this mixed solution, and the mixture was further stirred at 50° C. for 30 minutes. Thereafter, component (a) was further added to this liquid mixture and stirred for 60 minutes to obtain an anti-caking agent composition for fertilizer.
[固結防止性の評価]
粒子状のNPK肥料成分(N(窒素):P(リン):K(カリウム)=1:1:1(質量比))を目開き4mmのふるいにかけた後、調製した肥料用固結防止剤組成物を、噴霧器を用いて、表1に記載の被覆処理量となるように、NPK肥料成分の粒子表面に均一に散布し、肥料組成物を調製した。
調製した肥料組成物80gを高さ70mm直径48mmの側面に通気口を設けた円柱形の金型へ充填し109kPaの圧力をかけた状態で蓋を閉めた後、30℃相対湿度75%の雰囲気で1日、40℃相対湿度20%の雰囲気で2日間、恒温槽内で保管した。
保管後、金型内から固結した状態の肥料組成物を取り出し、圧縮強度試験機(Hung Ta Instrument社製、Co., Ltd社製 型式 HT-2402)を用いて、圧縮速度10mm/分で固結した肥料組成物が崩壊する強度(kgf)を測定した。結果を表1に示す。この崩壊強度が低い方が、肥料組成物が固結せずにさらさらな状態であることを意味し、固結が防止されていることがいえる。なお肥料用固結防止剤組成物で被覆処理せずにNPK肥料成分のみの場合の崩壊強度は、56.6kgfであった。 [Evaluation of anti-caking property]
Fertilizer anti-caking agent prepared by passing particulate NPK fertilizer components (N (nitrogen): P (phosphorus): K (potassium) = 1:1:1 (mass ratio)) through a sieve with a 4 mm opening. A fertilizer composition was prepared by uniformly spraying the composition onto the particle surface of the NPK fertilizer component using a sprayer so that the coating amount was as shown in Table 1.
80 g of the prepared fertilizer composition was filled into a cylindrical mold with a height of 70 mm and a diameter of 48 mm with ventilation holes on the side, and after closing the lid while applying a pressure of 109 kPa, the mold was placed in an atmosphere of 30° C. and 75% relative humidity. It was stored in a constant temperature bath for 2 days at 40° C. and 20% relative humidity.
After storage, the solidified fertilizer composition was taken out from the mold and tested at a compression speed of 10 mm/min using a compressive strength tester (model HT-2402, manufactured by Hung Ta Instrument Co., Ltd.). The strength (kgf) at which the solidified fertilizer composition collapses was measured. The results are shown in Table 1. A lower collapse strength means that the fertilizer composition is free from caking, and caking is prevented. Note that the collapse strength in the case of using only the NPK fertilizer component without coating with the anti-caking agent composition for fertilizer was 56.6 kgf.
粒子状のNPK肥料成分(N(窒素):P(リン):K(カリウム)=1:1:1(質量比))を目開き4mmのふるいにかけた後、調製した肥料用固結防止剤組成物を、噴霧器を用いて、表1に記載の被覆処理量となるように、NPK肥料成分の粒子表面に均一に散布し、肥料組成物を調製した。
調製した肥料組成物80gを高さ70mm直径48mmの側面に通気口を設けた円柱形の金型へ充填し109kPaの圧力をかけた状態で蓋を閉めた後、30℃相対湿度75%の雰囲気で1日、40℃相対湿度20%の雰囲気で2日間、恒温槽内で保管した。
保管後、金型内から固結した状態の肥料組成物を取り出し、圧縮強度試験機(Hung Ta Instrument社製、Co., Ltd社製 型式 HT-2402)を用いて、圧縮速度10mm/分で固結した肥料組成物が崩壊する強度(kgf)を測定した。結果を表1に示す。この崩壊強度が低い方が、肥料組成物が固結せずにさらさらな状態であることを意味し、固結が防止されていることがいえる。なお肥料用固結防止剤組成物で被覆処理せずにNPK肥料成分のみの場合の崩壊強度は、56.6kgfであった。 [Evaluation of anti-caking property]
Fertilizer anti-caking agent prepared by passing particulate NPK fertilizer components (N (nitrogen): P (phosphorus): K (potassium) = 1:1:1 (mass ratio)) through a sieve with a 4 mm opening. A fertilizer composition was prepared by uniformly spraying the composition onto the particle surface of the NPK fertilizer component using a sprayer so that the coating amount was as shown in Table 1.
80 g of the prepared fertilizer composition was filled into a cylindrical mold with a height of 70 mm and a diameter of 48 mm with ventilation holes on the side, and after closing the lid while applying a pressure of 109 kPa, the mold was placed in an atmosphere of 30° C. and 75% relative humidity. It was stored in a constant temperature bath for 2 days at 40° C. and 20% relative humidity.
After storage, the solidified fertilizer composition was taken out from the mold and tested at a compression speed of 10 mm/min using a compressive strength tester (model HT-2402, manufactured by Hung Ta Instrument Co., Ltd.). The strength (kgf) at which the solidified fertilizer composition collapses was measured. The results are shown in Table 1. A lower collapse strength means that the fertilizer composition is free from caking, and caking is prevented. Note that the collapse strength in the case of using only the NPK fertilizer component without coating with the anti-caking agent composition for fertilizer was 56.6 kgf.
[保存安定性の評価]
調製した肥料用固結防止剤組成物を25℃の恒温室で所定期間静置した後、液の分離の有無および性状を目視で観察し、下記の基準で判定した。結果を表1に示す。
〇:7日間以上液が分離していない
×:7日未満で液が分離する [Evaluation of storage stability]
After the prepared anti-caking agent composition for fertilizer was allowed to stand for a predetermined period of time in a constant temperature room at 25° C., the presence or absence of liquid separation and its properties were visually observed and judged according to the following criteria. The results are shown in Table 1.
〇: Liquid does not separate for more than 7 days ×: Liquid separates in less than 7 days
調製した肥料用固結防止剤組成物を25℃の恒温室で所定期間静置した後、液の分離の有無および性状を目視で観察し、下記の基準で判定した。結果を表1に示す。
〇:7日間以上液が分離していない
×:7日未満で液が分離する [Evaluation of storage stability]
After the prepared anti-caking agent composition for fertilizer was allowed to stand for a predetermined period of time in a constant temperature room at 25° C., the presence or absence of liquid separation and its properties were visually observed and judged according to the following criteria. The results are shown in Table 1.
〇: Liquid does not separate for more than 7 days ×: Liquid separates in less than 7 days
Claims (22)
- 下記の成分(a)、成分(b)、及び成分(c)を含有する、肥料用固結防止剤組成物。
成分(a):アニオン性界面活性剤
成分(b):スチレンとアクリル酸エステルのコポリマー、及びポリ酢酸ビニルから選ばれる1種以上
成分(c):ジメチルアルキルアミン(以下、成分(c1)という)及び分子量が50以上200以下であり、水酸基の価数が2以上6以下の多価アルコール(以下、成分(c2)という)から選ばれる1種以上 An anti-caking agent composition for fertilizers containing the following components (a), (b), and (c).
Component (a): Anionic surfactant Component (b): One or more types selected from a copolymer of styrene and acrylic acid ester, and polyvinyl acetate Component (c): Dimethylalkylamine (hereinafter referred to as component (c1)) and one or more polyhydric alcohols having a molecular weight of 50 or more and 200 or less and a hydroxyl group valence of 2 or more and 6 or less (hereinafter referred to as component (c2)) - 成分(a)が、アルキル又はアルケニル硫酸エステル、アルカンスルホン酸、オレフィンスルホン酸、脂肪酸、及びこれらの塩から選ばれる1種以上である、請求項1に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizers according to claim 1, wherein component (a) is one or more selected from alkyl or alkenyl sulfates, alkanesulfonic acids, olefinsulfonic acids, fatty acids, and salts thereof.
- 成分(a)が、アルキル又はアルケニル硫酸エステル又はその塩である、請求項1又は2に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizers according to claim 1 or 2, wherein component (a) is an alkyl or alkenyl sulfate or a salt thereof.
- 成分(a)が、ラウリル硫酸エステル又はその塩である、請求項1~3の何れか1項に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizer according to any one of claims 1 to 3, wherein component (a) is lauryl sulfate or a salt thereof.
- 成分(a)を、1質量%以上30質量%以下含有する、請求項1~4の何れか1項に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizer according to any one of claims 1 to 4, which contains component (a) in an amount of 1% by mass or more and 30% by mass or less.
- 成分(b)が、スチレンとアクリル酸エステルのコポリマーである、請求項1~5の何れか1項に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizer according to any one of claims 1 to 5, wherein component (b) is a copolymer of styrene and acrylic ester.
- 成分(b)が、スチレンと2-エチルヘキシルアクリレートのコポリマーである、請求項1~6の何れか1項に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizers according to any one of claims 1 to 6, wherein component (b) is a copolymer of styrene and 2-ethylhexyl acrylate.
- 成分(b)を、0.1質量%以上15質量%以下含有する、請求項1~7の何れか1項に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizer according to any one of claims 1 to 7, which contains component (b) in an amount of 0.1% by mass or more and 15% by mass or less.
- 成分(c)が、成分(c1)である、請求項1~8の何れか1項に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizer according to any one of claims 1 to 8, wherein component (c) is component (c1).
- 成分(c1)が、アルキル基の炭素数が8以上22以下のジメチルアルキルアミンである、請求項9に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizers according to claim 9, wherein component (c1) is dimethylalkylamine in which the alkyl group has 8 or more carbon atoms and 22 or less carbon atoms.
- 成分(c1)を、0.5質量%以上5質量%以下含有する、請求項9又は10に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizer according to claim 9 or 10, which contains component (c1) in an amount of 0.5% by mass or more and 5% by mass or less.
- 成分(c)が、成分(c2)である、請求項1~8の何れか1項に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizer according to any one of claims 1 to 8, wherein component (c) is component (c2).
- 成分(c2)が25℃で液体の多価アルコールである、請求項12に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizer according to claim 12, wherein component (c2) is a polyhydric alcohol that is liquid at 25°C.
- 成分(c2)が、エチレングリコール、ジエチレングリコール、グリセリン、ソルビトールから選ばれる1種以上である、請求項12又は13に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizers according to claim 12 or 13, wherein component (c2) is one or more selected from ethylene glycol, diethylene glycol, glycerin, and sorbitol.
- 成分(c2)を、0.5質量%以上20質量%以下含有する、請求項12~14の何れか1項に記載の肥料用固結防止剤組成物。 The anti-caking agent composition for fertilizer according to any one of claims 12 to 14, which contains component (c2) in an amount of 0.5% by mass or more and 20% by mass or less.
- 成分(a)の含有量と成分(c)の含有量との質量比(c)/(a)が、0.05以上3以下である、請求項1~15の何れか1項に記載の肥料用固結防止剤組成物。 The mass ratio (c)/(a) of the content of component (a) to the content of component (c) is 0.05 or more and 3 or less, according to any one of claims 1 to 15. Anti-caking agent composition for fertilizer.
- 成分(a)及び成分(c)の合計含有量と成分(b)の含有量との質量比(b)/[(a)+(c)]が、0.01以上1.5以下である、請求項1~16の何れか1項に記載の肥料用固結防止剤組成物。 The mass ratio (b)/[(a)+(c)] of the total content of component (a) and component (c) to the content of component (b) is 0.01 or more and 1.5 or less. , the anti-caking agent composition for fertilizer according to any one of claims 1 to 16.
- 請求項1~17の何れか1項に記載の肥料用固結防止剤組成物、及び肥料成分を含有する、肥料組成物。 A fertilizer composition containing the anti-caking agent composition for fertilizer according to any one of claims 1 to 17 and a fertilizer component.
- 平均粒径が0.01mm以上10mm以下の粒子である、請求項18に記載の肥料組成物。 The fertilizer composition according to claim 18, wherein the particles have an average particle size of 0.01 mm or more and 10 mm or less.
- 請求項1~17の何れか1項に記載の肥料用固結防止剤組成物を、肥料成分の粒子表面に被覆処理する、肥料組成物の製造方法。 A method for producing a fertilizer composition, comprising coating the surface of particles of a fertilizer component with the anti-caking agent composition for fertilizer according to any one of claims 1 to 17.
- 前記肥料用固結防止剤組成物の被覆処理量が、肥料成分の質量に対して、50ppm以上5000ppm以下である、請求項18に記載の肥料組成物の製造方法。 The method for producing a fertilizer composition according to claim 18, wherein the coating amount of the anti-caking agent composition for fertilizer is 50 ppm or more and 5000 ppm or less based on the mass of the fertilizer component.
- 請求項1~17の何れか1項に記載の肥料用固結防止剤組成物を、肥料成分の粒子表面に被覆処理する、肥料成分の固結防止方法。 A method for preventing caking of a fertilizer component, comprising coating the surface of particles of the fertilizer component with the anti-caking agent composition for fertilizer according to any one of claims 1 to 17.
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