CA1166436A - Anticaking agent composition for potassium salt - Google Patents
Anticaking agent composition for potassium saltInfo
- Publication number
- CA1166436A CA1166436A CA000399464A CA399464A CA1166436A CA 1166436 A CA1166436 A CA 1166436A CA 000399464 A CA000399464 A CA 000399464A CA 399464 A CA399464 A CA 399464A CA 1166436 A CA1166436 A CA 1166436A
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- Prior art keywords
- water
- anticaking agent
- potassium
- salt
- anticaking
- Prior art date
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Abstract
ABSTRACT
An anticaking agent composition for potassium salt and comprises (a) a higher aliphatic amine salt and (b) a nonionic surfactant, a water-soluble saccharide or a water-soluble saccharide derivative.
An anticaking agent composition for potassium salt and comprises (a) a higher aliphatic amine salt and (b) a nonionic surfactant, a water-soluble saccharide or a water-soluble saccharide derivative.
Description
1 16643~
The present invention relates to anticaking agents for potassium salts.
Potassium salts are industrially useful materials for the production of fertilizers, gunpowders and glasses. Particularly, they are important as one of the three essential elements of fertilizers required for the growth of plants.
Generally, chemical substances used as fertilizers have a defect that they are liable to cake during storage and thus their workability deteriorates.
This defect is observed not only in urea, ammonium sulfate, ammonium chloride and ammonium nitrate mass-produced as chemical fertilizers but also potash ores dug out of the ground.
Studies have been made on the prevention of caking and various ideas have been proposed.
However, a satisfactory measure to counter caking has not been taken, since potassium salts have been rated low as compared with nitrogen and phosphoric acid. This is because the potassium salts are contained in the soil generally unlike nitrogen or phosphoric acid. Potassium salt deficiency is only slight particularly in tropical soils and the processing degree of potassium salts is not as high as that of ammonia or phosphate ores. There-fore, during storage or transportation of potassium salts which have been dug out and packed in bags or in bulk, they cake and the workability is seriously reduced. This is an important problem.
The following processes have been proposed for the prevention of the caking:
(1) A process wherein an insoluble fine powder such as diatomaceous earth, talc, kaolin, powdered silicic acid or calcium salt of a fatty acid - 1 - ~
~166436 is mixed with particles of the substance having caking property so as to prevent direct contact of the particles with one another.
The present invention relates to anticaking agents for potassium salts.
Potassium salts are industrially useful materials for the production of fertilizers, gunpowders and glasses. Particularly, they are important as one of the three essential elements of fertilizers required for the growth of plants.
Generally, chemical substances used as fertilizers have a defect that they are liable to cake during storage and thus their workability deteriorates.
This defect is observed not only in urea, ammonium sulfate, ammonium chloride and ammonium nitrate mass-produced as chemical fertilizers but also potash ores dug out of the ground.
Studies have been made on the prevention of caking and various ideas have been proposed.
However, a satisfactory measure to counter caking has not been taken, since potassium salts have been rated low as compared with nitrogen and phosphoric acid. This is because the potassium salts are contained in the soil generally unlike nitrogen or phosphoric acid. Potassium salt deficiency is only slight particularly in tropical soils and the processing degree of potassium salts is not as high as that of ammonia or phosphate ores. There-fore, during storage or transportation of potassium salts which have been dug out and packed in bags or in bulk, they cake and the workability is seriously reduced. This is an important problem.
The following processes have been proposed for the prevention of the caking:
(1) A process wherein an insoluble fine powder such as diatomaceous earth, talc, kaolin, powdered silicic acid or calcium salt of a fatty acid - 1 - ~
~166436 is mixed with particles of the substance having caking property so as to prevent direct contact of the particles with one another.
(2) A process wherein the surface of the substance having caking property is coated with a mineral oil or water-soluble polymer to form a waterproof coating film thereon which intercepts water from going in and out, whereby the formation of cross-link;ng crystals between the particles is prevented.
(3) A process wherein a monomolecular film of a surfactant is formed on the surface of the substance having caking property to alter the surface properties of this substance and to make the caking difficult.
(4) A process wherein the crystalline state is altered so as to prevent the caking by crystal property-modifying effect, for example, the effect of a complex of a polymer and an anionic surfactant on urea or the effect of Acid Magenta on ammonium nitrate, whereby the caking is prevented.
Above processes (1) - (4) have been put to practical use. However, in process (1), a mineral oil must be used as a binder in an amount of several percent to obtain a sufficient anticaking effect. When process (2) is employed alone, a sufficient effect cannot be obtained even if several percent of the anticaking agent is used. Processes (3) and (4) are economically satisfactory methods, since sufficient effects can be obtained merely by adding 0.01-0.05 wt.% of a surfactant without causing any trouble in the processing.
However, processes (3) and (4) have been developed for the treatment of mainly nitrogen fertilizers. For example, anionic surfactants such as alkyl sulfate salts and alkylbenzenesulfonate salts have been used for the treatment of urea and ammonium sulfate and cationic surfactants such as ~ ~6643~
alkylamines and their acetate salts and hydrochloride salts have been used for the treatment of ammonium nitrate and ammonium chloride practically. ~owever, satisfactory anticaking agents have not been developed for potassium salts.
In a process for anticaking of potassium salts currently employed in Canada and some other countries, the above-mentioned mineral oils and alkyla-mines are used, However, their anticaking effects are still unsatisfactory.
This process has the following problems: the alkylamines are not molten unless they are heated to a high temperature in the spraying step. The handling is thus not easy. When white potassium chloride is treated, there is a problem that it is colored by the mineral oil used. The development of an anticaking agent having excellent caking inhibiting effect but free of the above-mentioned defects has eagerly been demanded.
After intensive investigations made for the purpose of obtaining an excellent anticaking agent for potassium salts free of said defects, the inven-tors have completed the present invention.
The present invention provides an anticaking agent for potassium salts containing as essential ingredients (a) a higher aliphatic amine salt and (b) one or more compounds selected from the group consisting of nonionic surfac-tants, water-soluble saccharides and water-soluble saccharide derivatives.
The present invention also provides a method of preventing a potas-sium salt from caking during storage, which method comprises spraying on the potassium salt an aqueous solution or a solution of a water-compatible solvent containing the anticaking agent as defined above.
The higher aliphatic amine salts used as an ingredient of the anti-caking agent of the present invention are obtained by reacting higher aliphatic amines with acids by an ordinary method (salt-forming reaction). For example, '3 1 1 ~6~36 a higher aliphatic amine salt is obtained by mixing a solution of an amine in an alcohol with an aqueous acid solution and evaporating the alcohol and water to concentrate the reaction product.
B 3a -The higher aliphatic amines include amines having an alkyl or alkenyl group of 8-22 carbon atoms~ for example, primary amines such as octylamine, laurylamine, stearylamine and oleylamine, secondary amines such as dilaurylamine and laurylmethylamine and tertiary amines such as lauryldimethylamine and stearyldimethylamine. Among them, the primary amines are particularly preferred.
As acids which function as counter ions to the amine salts, there may be used both inorganic and organic acids capable of forming salts with the amines. As the inorganic acids, there may be mentioned hydro-chloric acid nitric acid and sulfuric acid. As the organic acids, there may be mentioned acetic acid, lactic acid and butyric acid.
The nonionic surfactants, water-soluble saccharides and water-soluble saccharide derivatives used in the present invention as the other component (s) are as shown below.
As the nonionic surfactants, there may be mentioned, for example, polyoxyethylene/fatty acid esters, polyoxyethylene sorbitantfatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene alkylaryl ethers, polyoxyethylene castor oil ethers, fatty acid monoglycerides, fatty acid diglycerides, oxyethylene/oxypropylene block copolymers, sucrose/fatty acid esters, sorbitan/fatty acid esters and sorbitol/fatty acid esters.
As the water-soluble saccharides, there may be used monosaccharides such as glucose (grape sugar), mannose, galactose, ketohexose (fruit sugar) and sorbose; oligosaccharides such as maltose, lactose, gentiobiose, saccharose and gentianose; and polysaccharides such as soluble starch.
As the water-soluble saccharide derivatives, there may be mentioned, for example, hydroxyethylcellulose and hydroxypropylcellulose.
~66436 Weight ratio of higher aliphatic amine salt (a) to at least one compound ~b) selected from the group cons;sting of non;onic surfactants, water-soluble saccharides and water-soluble saccharide derivatives is preferably in the range of 100/1 to 1/2, more preferably 50/1 to 1/1, and still preferably 20/1 to 2/1.
Method of adding the anticaking agent of the present invention to the potassium salt is not particularly limited. Generally, the anticaking agent in the form of a solution in water or in a water-soluble solvent of a high concentration is sprayed on the potassium salt.
As the water-soluble solvents, there may be mentioned, for example, methanol, ethanol, propyl alcohol, isopropyl alcohol, isobutyl alcohol, butylcarbitol, methylcarbitol, ethylene glycol and propylene glycol. The use of the solution in water-soluble solvent is preferred to the use of the aqueous solution in the spraying. It is convenient, therefore, for the use to previously prepare solutions of (a) and (b) in a water-soluble solvent. The ratio of the anticaking agent of the present invention to the water-soluble solvent varies depending on solubility and viscosity of the solution. Generally, the amount of the anticaking agent is 10-90 wt. %. As a matter of course, water may be added to the water-soluble solvent in order to enhance its solubility.
The anticaking agent of the present invention is added to the potassium salt in an amount of 0.0005-1 wt. %, preferably 0.005-0.1 wt. %, based on the potassium salt.
By using the anticaking agent of the present invention, it becomes possible to inhibit the caking of the potassium salts, to make the handling of them during the storage or transportation easy and to prevent them ~166436 from being colored. In addition, in case the potassium salts are used as fertilizers, the anticaking agent of the present invention does not damage the crop plants.
Though the mechanism of the excellent effect of the anticaking agent of the present invention on the potassium salts has not been elucidated yet, it is considered that the effect is obtained according to synergism of higher aliphatic amine salt (a) and compound (s) (b) selected from the group consisting of nonionic surfactants, water-soluble saccharides and water-soluble saccharide derivatives.
An idea of using an amine salt alone for inhibiting the caking of ammonium nitrate, ammonium sulfate and urea has previously been proposed.
However, the amine salt has not been used for the prevention of the caking of potassium salts. According to the inventors' experiments, satisfactory results could not be obtained by using the amine salt.
The mechanism of the anticaking effect of an amine acetate has been supposed to be that an oily film is formed on the surface of each of the particles of the substance to be treated~ whereby the particles are isolated from the environment or from one another. In case of ammonium nitrate, the amine acetate exerts an effect of weakening its crystal form transition due to temperature change. It is supposed that this effect is remarkably improved by using the amine salt in combination with compound (b) such as the nonionic surfactant. This is a surprising effect unexpected in the art.
The term "potassium salts" herein involves substances containing potassium chloride or potassium sulfate as main ingredients. They include not only potassium ores but also highly pure potassium chloride and potassium sulfate produced from the potassium ores.
The following examples further illustrate the present invention, which by no means limit the invention.
Example 1 Anticaking tests of anticaking agents shown in Table 1 were carried out using red fine-grained potassium ore produced in Canada (Standard, particle size d;stribution: 9-48 mesh 96%, main ingredient:
KCQ) as a potassium salt. The results are shown in Table 1.
Anticaking test 45 9 of the potassium salt on which a given amount of an anticaking agent had been sprayed (note 1) was charged in a cylindrical mold made of rigid polyvinyl chloride having an inner diameter of 4 cm.
A pressure of 20 K9/12 cm2 was applied thereto and the whole was left at 35 + 3C and 30 ~ 5% RH for 13 days.
Then, the molded product was taken out and its crushing load was measured by means of a Tensilon compression strength meter ( a product of Toyo Baldwin Co.). Anticaking rate was calculated according to the following formula:
Anticaking rate (%) Crushing load (Crushing load of ) ( anticaking agent-20nontreated sample ( treated sample x 100 (Crushing load of nontreated sample) Note 1: 10% aqueous solution of anticaking agent was used.
The solution was sprayed on 200 9 of the potassium salt to effect the uniform spraying.
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I l66~36 Example 2 Anticaking tests of anticaking agents shown in Table 2 were carried out using white, powdered potassium ore produced in Canada {White Soluble, particle size distribution: 20-80 mesh 87%, main ingredient: KCQ (more than 95%)} under the same conditions as in Example 1 except that the duration was 7 days. The results are shown in Table 2.
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It66~i36 Example 3 Anticaking tests of the following anticaking agents No. 26-32 were carried out using the above-mentioned, white powder (White Soluble) and Red coarse granules {Coarse Granules, particle size distribution:
90-20 mesh 90%, main ingredient: KCQ (90%)} produced in Canada as potassium salts under the same conditions as in Example 2.
The results are shown in Table 3.
Compositions of anticakinc aqents:
Laurylamine acetate 50 wt. %
Polyoxyethylene (10) lauryl ether 10 "
No.26 Glucose 2 "
¦ Isopropyl alcohol 18 "
~Water 20 "
~Laurylamine acetate 50 wt. %
No.27 ~ Polyoxyethylene (10) lauryl ether 10 "
Isopropyl alcohol 20 "
~Water 20 "
( Stearylamine acetate 50 wt. %
No.28 ~ Polyoxyethylene (10) oleyl ether 10 "
¦ Propylene glycol 20 "
Water 20 "
Stearylamine acetate 50 wt. %
Polyoxyethylene (10) oleyl ether 10 "
No.29 Glucose 2 "
Propylene glycol 18 "
Water 20 "
Mineral oil 50 wt. %
No.30 {
Stearylamine 50 "
ll66~36 Mineral oil 50 wt.
Stearylamine acetate 50 "
No.32 { No additive ~Laurylamine acetate 20 wt. %
~ Polyoxyethylene (20)sorbitan No.33 ~ mono-oleate 5 "
A ¦ Butylcarbitol ~Water 70 "
fLaurylamine hydrochloride 20 wt. %
¦ Polyoxyethylene (20) sorbitan mono-laurate 5 "
No.34 Butylcellosolve~ 5 "
Methanol 30 "
Water 40 "
/Laurylamine acetate 50 wt. %
¦ Polyoxyethylene (5) sorbitan I mono-oleate 10 "
No.35 ~ ~
Butylcarbitol~ 29 "
Sucrose 1 "
Water 10 "
~Stearylamine acetate 50 wt. %
¦ Polyoxyethylene (20) sorbitan I mono-laurate 15 "
No.36 <
Methylcellosolve ~ 29 ~
Sucrose 1 "
~Water 5 "
ff f~
I ~6643~
Table 3 ~ _ salt \White solubleCoarse granule \Anticaking rate (%)Anticaking rate (%) \
\ Amount Amount Amount Amount No. \ 0.01 wt.% 0.03 wt.% 0.01 wt.%0,03 wt. %
\ ..
26 100 100 56.5 100 o . . ._ ... ___ ... _ 27 100 100 55.2 100 ~ . ....
28 95.2 98.5 43.5 80.9 L 29 96.3 99.8 50.1 81.2 49.1 79.2 29.3 53.7 aJ ._ . .
~ 31 40.9 78.3 30.4 59.2 E . _ 32 . 0 0 0 33 100 100 60.1 100 o .~ 34 98.1 100 57.9 100 a- . . .. ... _ ~, 35 87.5 98.2 50.1 78.2 . __ _ 36 85.8 99.4 45.2 76.7
Above processes (1) - (4) have been put to practical use. However, in process (1), a mineral oil must be used as a binder in an amount of several percent to obtain a sufficient anticaking effect. When process (2) is employed alone, a sufficient effect cannot be obtained even if several percent of the anticaking agent is used. Processes (3) and (4) are economically satisfactory methods, since sufficient effects can be obtained merely by adding 0.01-0.05 wt.% of a surfactant without causing any trouble in the processing.
However, processes (3) and (4) have been developed for the treatment of mainly nitrogen fertilizers. For example, anionic surfactants such as alkyl sulfate salts and alkylbenzenesulfonate salts have been used for the treatment of urea and ammonium sulfate and cationic surfactants such as ~ ~6643~
alkylamines and their acetate salts and hydrochloride salts have been used for the treatment of ammonium nitrate and ammonium chloride practically. ~owever, satisfactory anticaking agents have not been developed for potassium salts.
In a process for anticaking of potassium salts currently employed in Canada and some other countries, the above-mentioned mineral oils and alkyla-mines are used, However, their anticaking effects are still unsatisfactory.
This process has the following problems: the alkylamines are not molten unless they are heated to a high temperature in the spraying step. The handling is thus not easy. When white potassium chloride is treated, there is a problem that it is colored by the mineral oil used. The development of an anticaking agent having excellent caking inhibiting effect but free of the above-mentioned defects has eagerly been demanded.
After intensive investigations made for the purpose of obtaining an excellent anticaking agent for potassium salts free of said defects, the inven-tors have completed the present invention.
The present invention provides an anticaking agent for potassium salts containing as essential ingredients (a) a higher aliphatic amine salt and (b) one or more compounds selected from the group consisting of nonionic surfac-tants, water-soluble saccharides and water-soluble saccharide derivatives.
The present invention also provides a method of preventing a potas-sium salt from caking during storage, which method comprises spraying on the potassium salt an aqueous solution or a solution of a water-compatible solvent containing the anticaking agent as defined above.
The higher aliphatic amine salts used as an ingredient of the anti-caking agent of the present invention are obtained by reacting higher aliphatic amines with acids by an ordinary method (salt-forming reaction). For example, '3 1 1 ~6~36 a higher aliphatic amine salt is obtained by mixing a solution of an amine in an alcohol with an aqueous acid solution and evaporating the alcohol and water to concentrate the reaction product.
B 3a -The higher aliphatic amines include amines having an alkyl or alkenyl group of 8-22 carbon atoms~ for example, primary amines such as octylamine, laurylamine, stearylamine and oleylamine, secondary amines such as dilaurylamine and laurylmethylamine and tertiary amines such as lauryldimethylamine and stearyldimethylamine. Among them, the primary amines are particularly preferred.
As acids which function as counter ions to the amine salts, there may be used both inorganic and organic acids capable of forming salts with the amines. As the inorganic acids, there may be mentioned hydro-chloric acid nitric acid and sulfuric acid. As the organic acids, there may be mentioned acetic acid, lactic acid and butyric acid.
The nonionic surfactants, water-soluble saccharides and water-soluble saccharide derivatives used in the present invention as the other component (s) are as shown below.
As the nonionic surfactants, there may be mentioned, for example, polyoxyethylene/fatty acid esters, polyoxyethylene sorbitantfatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene alkylaryl ethers, polyoxyethylene castor oil ethers, fatty acid monoglycerides, fatty acid diglycerides, oxyethylene/oxypropylene block copolymers, sucrose/fatty acid esters, sorbitan/fatty acid esters and sorbitol/fatty acid esters.
As the water-soluble saccharides, there may be used monosaccharides such as glucose (grape sugar), mannose, galactose, ketohexose (fruit sugar) and sorbose; oligosaccharides such as maltose, lactose, gentiobiose, saccharose and gentianose; and polysaccharides such as soluble starch.
As the water-soluble saccharide derivatives, there may be mentioned, for example, hydroxyethylcellulose and hydroxypropylcellulose.
~66436 Weight ratio of higher aliphatic amine salt (a) to at least one compound ~b) selected from the group cons;sting of non;onic surfactants, water-soluble saccharides and water-soluble saccharide derivatives is preferably in the range of 100/1 to 1/2, more preferably 50/1 to 1/1, and still preferably 20/1 to 2/1.
Method of adding the anticaking agent of the present invention to the potassium salt is not particularly limited. Generally, the anticaking agent in the form of a solution in water or in a water-soluble solvent of a high concentration is sprayed on the potassium salt.
As the water-soluble solvents, there may be mentioned, for example, methanol, ethanol, propyl alcohol, isopropyl alcohol, isobutyl alcohol, butylcarbitol, methylcarbitol, ethylene glycol and propylene glycol. The use of the solution in water-soluble solvent is preferred to the use of the aqueous solution in the spraying. It is convenient, therefore, for the use to previously prepare solutions of (a) and (b) in a water-soluble solvent. The ratio of the anticaking agent of the present invention to the water-soluble solvent varies depending on solubility and viscosity of the solution. Generally, the amount of the anticaking agent is 10-90 wt. %. As a matter of course, water may be added to the water-soluble solvent in order to enhance its solubility.
The anticaking agent of the present invention is added to the potassium salt in an amount of 0.0005-1 wt. %, preferably 0.005-0.1 wt. %, based on the potassium salt.
By using the anticaking agent of the present invention, it becomes possible to inhibit the caking of the potassium salts, to make the handling of them during the storage or transportation easy and to prevent them ~166436 from being colored. In addition, in case the potassium salts are used as fertilizers, the anticaking agent of the present invention does not damage the crop plants.
Though the mechanism of the excellent effect of the anticaking agent of the present invention on the potassium salts has not been elucidated yet, it is considered that the effect is obtained according to synergism of higher aliphatic amine salt (a) and compound (s) (b) selected from the group consisting of nonionic surfactants, water-soluble saccharides and water-soluble saccharide derivatives.
An idea of using an amine salt alone for inhibiting the caking of ammonium nitrate, ammonium sulfate and urea has previously been proposed.
However, the amine salt has not been used for the prevention of the caking of potassium salts. According to the inventors' experiments, satisfactory results could not be obtained by using the amine salt.
The mechanism of the anticaking effect of an amine acetate has been supposed to be that an oily film is formed on the surface of each of the particles of the substance to be treated~ whereby the particles are isolated from the environment or from one another. In case of ammonium nitrate, the amine acetate exerts an effect of weakening its crystal form transition due to temperature change. It is supposed that this effect is remarkably improved by using the amine salt in combination with compound (b) such as the nonionic surfactant. This is a surprising effect unexpected in the art.
The term "potassium salts" herein involves substances containing potassium chloride or potassium sulfate as main ingredients. They include not only potassium ores but also highly pure potassium chloride and potassium sulfate produced from the potassium ores.
The following examples further illustrate the present invention, which by no means limit the invention.
Example 1 Anticaking tests of anticaking agents shown in Table 1 were carried out using red fine-grained potassium ore produced in Canada (Standard, particle size d;stribution: 9-48 mesh 96%, main ingredient:
KCQ) as a potassium salt. The results are shown in Table 1.
Anticaking test 45 9 of the potassium salt on which a given amount of an anticaking agent had been sprayed (note 1) was charged in a cylindrical mold made of rigid polyvinyl chloride having an inner diameter of 4 cm.
A pressure of 20 K9/12 cm2 was applied thereto and the whole was left at 35 + 3C and 30 ~ 5% RH for 13 days.
Then, the molded product was taken out and its crushing load was measured by means of a Tensilon compression strength meter ( a product of Toyo Baldwin Co.). Anticaking rate was calculated according to the following formula:
Anticaking rate (%) Crushing load (Crushing load of ) ( anticaking agent-20nontreated sample ( treated sample x 100 (Crushing load of nontreated sample) Note 1: 10% aqueous solution of anticaking agent was used.
The solution was sprayed on 200 9 of the potassium salt to effect the uniform spraying.
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O ~ O 0~ ~ O _ c~l ~ ~ Ln 3 ~Z
_ _ _ _ *
I l66~36 Example 2 Anticaking tests of anticaking agents shown in Table 2 were carried out using white, powdered potassium ore produced in Canada {White Soluble, particle size distribution: 20-80 mesh 87%, main ingredient: KCQ (more than 95%)} under the same conditions as in Example 1 except that the duration was 7 days. The results are shown in Table 2.
1 166d36 _ _ _ _ ~ ~ ~__ ,~
t' _ 1~ 00 00 O~ NLt) ~) CO I_ O O ~ O ~ U~ ~ O L~ ~ ~ O
E o ~ ~_ ~ ~_ I~ ~ _ r-- a)Ir) _ ~ cn t_) ~ o ~) _ ~) O O ~ d C`.i _ O
.~ ~00 D d d Is~ ~ el-C~l C~J C~J
CC O
_ O . ~ ___ _ ._ ~
+~ D O O O O O O O I~S
I~-- _ ~ _ _ ~ . - _ U~
O-- O-- O O O O-- l l O-- l 3 ~ o~ ~7 ~ C~ a~ c~ cs~ _~
r~
_ ~ O
D
l ~
11) al _ o O : ~, a~ ~ a~ ~ ~ x ~
DVl D U O O O ~_ ~ ta _ ~ c _ D a) ~ ~ ~ ~ ~, ~a ~
._ x a~ _ v~ ~n E~,-- ~
~,) O O D O O O _ _ v .~ ~ t_) ~ _~ ~ .~ ~o a~ 18 >~ ~ O _ ~ ~ ~ t~ ._ I ~ U) C!5 I ~r) a~ ~) _ a) ~ $
_ ~ ~ a~ s~ ~ o .r E E _ ~5 _ C~ = 115 r~ U) r-- = = = ~ C c ~ E ~ ~0 3 a~ a~ ~ a~ ~ ~ ~ _ l:S ~ ~ Il:S ~ O ~S O ~
~ U) ~ _ V~ tJ~ ~ Z _ _ ~ _ . __ / O ~1~ 00 ~ O r-- N ~ d~ U') / ~ _ r _ N N
~ uo L~ua~\u L ~UaSald aA L~eleduJo~
~ 11 ~
It66~i36 Example 3 Anticaking tests of the following anticaking agents No. 26-32 were carried out using the above-mentioned, white powder (White Soluble) and Red coarse granules {Coarse Granules, particle size distribution:
90-20 mesh 90%, main ingredient: KCQ (90%)} produced in Canada as potassium salts under the same conditions as in Example 2.
The results are shown in Table 3.
Compositions of anticakinc aqents:
Laurylamine acetate 50 wt. %
Polyoxyethylene (10) lauryl ether 10 "
No.26 Glucose 2 "
¦ Isopropyl alcohol 18 "
~Water 20 "
~Laurylamine acetate 50 wt. %
No.27 ~ Polyoxyethylene (10) lauryl ether 10 "
Isopropyl alcohol 20 "
~Water 20 "
( Stearylamine acetate 50 wt. %
No.28 ~ Polyoxyethylene (10) oleyl ether 10 "
¦ Propylene glycol 20 "
Water 20 "
Stearylamine acetate 50 wt. %
Polyoxyethylene (10) oleyl ether 10 "
No.29 Glucose 2 "
Propylene glycol 18 "
Water 20 "
Mineral oil 50 wt. %
No.30 {
Stearylamine 50 "
ll66~36 Mineral oil 50 wt.
Stearylamine acetate 50 "
No.32 { No additive ~Laurylamine acetate 20 wt. %
~ Polyoxyethylene (20)sorbitan No.33 ~ mono-oleate 5 "
A ¦ Butylcarbitol ~Water 70 "
fLaurylamine hydrochloride 20 wt. %
¦ Polyoxyethylene (20) sorbitan mono-laurate 5 "
No.34 Butylcellosolve~ 5 "
Methanol 30 "
Water 40 "
/Laurylamine acetate 50 wt. %
¦ Polyoxyethylene (5) sorbitan I mono-oleate 10 "
No.35 ~ ~
Butylcarbitol~ 29 "
Sucrose 1 "
Water 10 "
~Stearylamine acetate 50 wt. %
¦ Polyoxyethylene (20) sorbitan I mono-laurate 15 "
No.36 <
Methylcellosolve ~ 29 ~
Sucrose 1 "
~Water 5 "
ff f~
I ~6643~
Table 3 ~ _ salt \White solubleCoarse granule \Anticaking rate (%)Anticaking rate (%) \
\ Amount Amount Amount Amount No. \ 0.01 wt.% 0.03 wt.% 0.01 wt.%0,03 wt. %
\ ..
26 100 100 56.5 100 o . . ._ ... ___ ... _ 27 100 100 55.2 100 ~ . ....
28 95.2 98.5 43.5 80.9 L 29 96.3 99.8 50.1 81.2 49.1 79.2 29.3 53.7 aJ ._ . .
~ 31 40.9 78.3 30.4 59.2 E . _ 32 . 0 0 0 33 100 100 60.1 100 o .~ 34 98.1 100 57.9 100 a- . . .. ... _ ~, 35 87.5 98.2 50.1 78.2 . __ _ 36 85.8 99.4 45.2 76.7
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An anticaking agent composition for potassium salts which comprises (a) a higher aliphatic amine salt and (b) one or more compounds selected from nonionic surfactants, water-soluble saccharides and water-soluble saccharide derivatives.
2. An anticaking agent composition set forth in claim 1, where said higher aliphatic amine salt is an alkyl or alkenyl amine salt having 8 to 22 carbon atoms in the alkyl or alkenyl group.
3. An anticaking agent composition set forth in claim 1, where proportions of (a) to (b) are 100/1 to 1/2.
4. An anticaking agent composition set forth in claim 1, 2 or 3, where the composition is in the form of a solution in water or a water-compatible solvent at a concentration of 10 to 90 wt. percent.
5. A method of preventing a potassium salt from caking during storage, which method comprises spraying on the potassium salt an aqueous solution or a solution of a water-compatible solvent contain-ing the anticaking agent as defined in claim 1.
6. A method set forth in claim 5, wherein the potassium salt is potassium ore containing potassium chloride as the main ingredient.
7. A method set forth in claim 5 or 6, wherein the anticaking agent is applied 0.005 to 0.1 % by weight based on the potassium salt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56044830A JPS605558B2 (en) | 1981-03-27 | 1981-03-27 | Potash salt anti-caking agent |
| JP44830/81 | 1981-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1166436A true CA1166436A (en) | 1984-05-01 |
Family
ID=12702371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000399464A Expired CA1166436A (en) | 1981-03-27 | 1982-03-26 | Anticaking agent composition for potassium salt |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS605558B2 (en) |
| CA (1) | CA1166436A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113717008A (en) * | 2021-08-13 | 2021-11-30 | 四川鸿康科技股份有限公司 | Monoammonium phosphate anti-caking agent and application thereof |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62112770U (en) * | 1985-12-29 | 1987-07-17 | ||
| JPS62206695A (en) * | 1986-03-07 | 1987-09-11 | Nec Corp | Bar code label |
| JPS63175987A (en) * | 1987-01-16 | 1988-07-20 | Dainichi Color & Chem Mfg Co Ltd | Bar code recording member |
| JPH0218173U (en) * | 1988-07-15 | 1990-02-06 | ||
| DE3918523A1 (en) * | 1989-06-07 | 1990-12-13 | Kali & Salz Ag | METHOD FOR BINDING DUST IN DUENGER GRANULES |
| WO2023209761A1 (en) * | 2022-04-25 | 2023-11-02 | 花王株式会社 | Anti-caking agent composition for fertilizer |
-
1981
- 1981-03-27 JP JP56044830A patent/JPS605558B2/en not_active Expired
-
1982
- 1982-03-26 CA CA000399464A patent/CA1166436A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113717008A (en) * | 2021-08-13 | 2021-11-30 | 四川鸿康科技股份有限公司 | Monoammonium phosphate anti-caking agent and application thereof |
| CN113717008B (en) * | 2021-08-13 | 2022-10-14 | 四川鸿康科技股份有限公司 | Monoammonium phosphate anti-caking agent and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS605558B2 (en) | 1985-02-12 |
| JPS57160988A (en) | 1982-10-04 |
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| Date | Code | Title | Description |
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| MKEX | Expiry |