CN102893992A - Weeding suspending agent and preparation process thereof - Google Patents
Weeding suspending agent and preparation process thereof Download PDFInfo
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- CN102893992A CN102893992A CN2012104175595A CN201210417559A CN102893992A CN 102893992 A CN102893992 A CN 102893992A CN 2012104175595 A CN2012104175595 A CN 2012104175595A CN 201210417559 A CN201210417559 A CN 201210417559A CN 102893992 A CN102893992 A CN 102893992A
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Abstract
The invention discloses a weeding suspending agent. The weeding suspending agent is characterized by comprising the following components in percentage by weight: 25-45 percent of dithiopyr, 40-70 percent of water, 1.5-2.5 percent of cosolvent, 1-3 percent of wetting agent, 1.5-3.5 percent of dispersing agent, 0.5-1 percent of defoaming agent, 1-2 percent of thickening agent and 0.5-1 percent of preservative. The weeding suspending agent has the advantages that water is used as a solvent, so that no dust drifts in application, the grinding particle size is small, which is convenient for plants to absorb, environmental pollution is reduced, and the safety of transportation and storage is improved; and the weeding suspending agent confirms to the requirement of green agricultural production and has the effects of good stability, freeze proofing, anticorrosion and good weeding effect.
Description
Technical field
The invention belongs to pesticide production technology field, relate in particular to a kind of weeding suspending agent, also relate to a kind of preparation technology of weeding suspending agent.
Background technology
Dithiopyr is weed killer herbicide efficient, low toxicity, is mainly used in paddy field and Kill weeds.This product is picolinic acid class weed killer herbicide.To rice safety, dispenser before the seedling can be prevented and kill off barnyard grass, Monochoria vaginalis, difformed galingale herb, alisma canaliculatum etc.In the lawn, dispenser before the seedling can be prevented and kill off the annual broadleaf weeds such as annual gramineous weeds such as rising lady's-grass, digitaria violascens Link and ball order grasswort.
The formulation of present domestic dithiopyr mainly is missible oil, at present, add a large amount of organic solvents in the farm chemical emulsion preparation, such as toluene, dimethylbenzene, solvent naphtha, the use of a large amount of chemical organic solvents is so that very easily make the organic solvent poisoning that is absorbed by the body in production, transportation, use procedure, because the flash-point of organic solvent is very low, very easily burning so that there are very large potential safety hazard in the transportation of product and storage, is that China and even the whole world limit one of formulation that will not develop.In addition in use, most medicament can not be absorbed by weeds, and is scattering in the farmland, has increased the pollution to environment, does not reach again the herbicidal effect of expection.
Summary of the invention
The purpose of this invention is to provide a kind of weeding suspending agent
Another object of the present invention provide a kind of weeding suspending agent preparation technology.
The technical solution used in the present invention is:
A kind of weeding suspending agent, this weeding suspending agent forms by following weight ratio: dithiopyr 25-45%; Water 40-70%; Cosolvent 1.5-2.5%; Wetting agent 1-3%; Dispersant 1.5-3.5%; Defoamer 0.5-1%; Thickener 1-2%; Preservative 0.5-1%.
A kind of preparation technology of weeding suspending agent, a: the former medicine of dithiopyr, cosolvent and water proportionally is added to stirs pulping in the batching kettle; B: the slurry that stirs is transported to colloid mill roughly ground 2-3 hour; C: above-mentioned corase grind liquid is delivered to carries out fine grinding in the sand mill, wear into to average grain diameter below 3 microns, stop sand milling; D: above-mentioned sand milling liquid is delivered in the compounding kettle, in compounding kettle, added wetting agent, dispersant, defoamer, thickener and preservative according to the described ratio of claim 1, fully stir, mix well rear sampling and detect; E: detect and feed liquid is delivered in the finished product storage tank after qualified the packing warehouse-in.
Described cosolvent is one or more in ethylene glycol, propane diols, the glycerine.
Described wetting agent is one or more of sylvan formaldehyde resin, APEO, organic silicon modified by polyether oxygen alkane.
Described dispersant is one or more in calcium lignosulfonate, alkyl phenolic group polyoxy phosphate, the sodium methylene bis-naphthalene sulfonate.
Described defoamer is one or more in organosilicon, dimethyl silicone polymer, the isooctanol.
Described thickener is one or more in urea, magnesium silicate lead, xanthans, the sodium alginate.
Described preservative is one or more in Sodium Benzoate, the Kathon CG.
Also comprise antifreeze in described this weeding suspending agent, described antifreeze is one or more in ethylene glycol, methyl alcohol and the ethanol.
Advantage of the present invention is: this product is made solvent with water, without the dust drift, grinds particle diameter little in application, is convenient to plant absorbing, has reduced the pollution to environment, the safety that has improved transportation and stored.Meet the requirement that green agriculture is produced, this product stability is good, antifreeze, anticorrosion, and herbicidal effect is good.
Embodiment
Embodiment 1
A kind of weeding suspending agent, this weeding suspending agent forms by following weight ratio:
Dithiopyr 25-45%;
Water 40-70%;
Cosolvent 1.5-2.5%;
Wetting agent 1-3%;
Dispersant 1.5-3.5%;
Defoamer 0.5-1%;
Thickener 1-2%;
Preservative 0.5-1%.
Cosolvent is ethylene glycol, propane diols, in the glycerine one or more, wetting agent is the sylvan formaldehyde resin, APEO, one or more of organic silicon modified by polyether oxygen alkane, dispersant is calcium lignosulfonate, alkyl phenolic group polyoxy phosphate, in the sodium methylene bis-naphthalene sulfonate one or more, defoamer is organosilicon, dimethyl silicone polymer, in the isooctanol one or more, thickener is urea, magnesium silicate is plumbous, xanthans, in the sodium alginate one or more, preservative is Sodium Benzoate, in the Kathon CG one or more, also comprise antifreeze in this weeding suspending agent, described antifreeze is ethylene glycol, in methyl alcohol and the ethanol one or more.
Embodiment 2
With the former medicine 32kg of dithiopyr, water 54kg, cosolvent 3 kg are added in the batching kettle, stir pulping 1 hour.This slurry is delivered to roughly grinds 2 hours in the colloid mill, coarse grained abrasive was delivered in the sand mill sand milling 3 hours, sample analysis, and average grain diameter is 2.5 microns; Feed liquid behind the sand milling is transported in the compounding kettle, adds defoamer 1 kg, thickener 2 kg, wetting agent 3 kg, dispersant 3 kg, preservative 1kg, stirs 1 hour, and sampling detects.
Embodiment 3
With the former medicine 35kg of dithiopyr, water 50kg, cosolvent 2.5 kg are added in the batching kettle, stir pulping 1.5 hours.This slurry is delivered to roughly grinds 2.5 hours in the colloid mill, coarse grained abrasive was delivered in the sand mill sand milling 2.5 hours, sample analysis, and average grain diameter is 3 microns; Feed liquid behind the sand milling is transported in the compounding kettle, adds defoamer 1.5kg, thickener 2.5 kg, wetting agent 2.5kg, dispersant 2.5 kg, preservative 1.5kg, stirs 1 hour, and sampling detects.
Embodiment 4
With the former medicine 30kg of dithiopyr, water 58kg, cosolvent 2 kg are added in the batching kettle, stir pulping 1 hour.This slurry is delivered to roughly grinds 2 hours in the colloid mill, coarse grained abrasive was delivered in the sand mill sand milling 3 hours, sample analysis, and average grain diameter is 2.5 microns; Feed liquid behind the sand milling is transported in the compounding kettle, adds defoamer 2 kg, thickener 1.5 kg, wetting agent 2kg, dispersant 3.5 kg, preservative 0.5kg, antifreezing agent 0.5kg, stirs 1 hour, and sampling detects.
Advantage of the present invention is: this product is made solvent with water, without the dust drift, grinds particle diameter little in application, is convenient to plant absorbing, has reduced the pollution to environment, the safety that has improved transportation and stored.Meet the requirement that green agriculture is produced, this product stability is good, antifreeze, anticorrosion, and herbicidal effect is good.
Claims (9)
1. weeding suspending agent is characterized in that: this weeding suspending agent forms by following weight ratio: dithiopyr 25-45%;
Water 40-70%;
Cosolvent 1.5-2.5%;
Wetting agent 1-3%;
Dispersant 1.5-3.5%;
Defoamer 0.5-1%;
Thickener 1-2%;
Preservative 0.5-1%.
2. the preparation technology of a weeding suspending agent is characterized in that:
A: the former medicine of dithiopyr, cosolvent and water proportionally is added to stirs pulping in the batching kettle;
B: the slurry that stirs is transported to colloid mill roughly ground 2-3 hour;
C: above-mentioned corase grind liquid is delivered to carries out fine grinding in the sand mill, wear into to average grain diameter below 3 microns, stop sand milling;
D: above-mentioned sand milling liquid is delivered in the compounding kettle, in compounding kettle, added wetting agent, dispersant, defoamer, thickener and preservative according to the described ratio of claim 1, fully stir, mix well rear sampling and detect;
E: detect and feed liquid is delivered in the finished product storage tank after qualified the packing warehouse-in.
3. a kind of weeding suspending agent according to claim 1, it is characterized in that: described cosolvent is one or more in ethylene glycol, propane diols, the glycerine.
4. a kind of weeding suspending agent according to claim 1 is characterized in that: described wetting agent is one or more of sylvan formaldehyde resin, APEO, organic silicon modified by polyether oxygen alkane.
5. a kind of weeding suspending agent according to claim 1, it is characterized in that: described dispersant is one or more in calcium lignosulfonate, alkyl phenolic group polyoxy phosphate, the sodium methylene bis-naphthalene sulfonate.
6. a kind of weeding suspending agent according to claim 1, it is characterized in that: described defoamer is one or more in organosilicon, dimethyl silicone polymer, the isooctanol.
7. a kind of weeding suspending agent according to claim 1, it is characterized in that: described thickener is one or more in urea, magnesium silicate lead, xanthans, the sodium alginate.
8. a kind of weeding suspending agent according to claim 1, it is characterized in that: described preservative is one or more in Sodium Benzoate, the Kathon CG.
9. a kind of weeding suspending agent according to claim 1, it is characterized in that: also comprise antifreeze in described this weeding suspending agent, described antifreeze is one or more in ethylene glycol, methyl alcohol and the ethanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104175595A CN102893992A (en) | 2012-10-29 | 2012-10-29 | Weeding suspending agent and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104175595A CN102893992A (en) | 2012-10-29 | 2012-10-29 | Weeding suspending agent and preparation process thereof |
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| CN102893992A true CN102893992A (en) | 2013-01-30 |
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| CN2012104175595A Pending CN102893992A (en) | 2012-10-29 | 2012-10-29 | Weeding suspending agent and preparation process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103535344A (en) * | 2013-09-22 | 2014-01-29 | 南通嘉禾化工有限公司 | Sulfosulfuron suspension for weed control |
| CN105494367A (en) * | 2016-01-12 | 2016-04-20 | 南宫市荣威生物药业有限公司 | Corn field weeding suspending agent and preparation method thereof |
Citations (6)
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| CN101946778A (en) * | 2010-09-17 | 2011-01-19 | 北京颖新泰康国际贸易有限公司 | Herbicide composition and application thereof |
| CN101965839A (en) * | 2010-09-17 | 2011-02-09 | 北京颖新泰康国际贸易有限公司 | Weedicide composition and use thereof |
| CN101971811A (en) * | 2010-10-12 | 2011-02-16 | 北京颖新泰康国际贸易有限公司 | Herbicide composition and application thereof |
| CN102027912A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicide composition containing dithiopyr and clopyralid and application thereof |
| CN102027914A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicide composition containing dithiopyr and fluroxypyr and application thereof |
| CN102027913A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicide composition containing dithiopyr and triclopyr and application thereof |
-
2012
- 2012-10-29 CN CN2012104175595A patent/CN102893992A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027912A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicide composition containing dithiopyr and clopyralid and application thereof |
| CN102027914A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicide composition containing dithiopyr and fluroxypyr and application thereof |
| CN102027913A (en) * | 2009-09-28 | 2011-04-27 | 南京华洲药业有限公司 | Herbicide composition containing dithiopyr and triclopyr and application thereof |
| CN101946778A (en) * | 2010-09-17 | 2011-01-19 | 北京颖新泰康国际贸易有限公司 | Herbicide composition and application thereof |
| CN101965839A (en) * | 2010-09-17 | 2011-02-09 | 北京颖新泰康国际贸易有限公司 | Weedicide composition and use thereof |
| CN101971811A (en) * | 2010-10-12 | 2011-02-16 | 北京颖新泰康国际贸易有限公司 | Herbicide composition and application thereof |
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| 郭武棣: "《农药剂型加工丛书-液体制剂》", 31 January 2004, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103535344A (en) * | 2013-09-22 | 2014-01-29 | 南通嘉禾化工有限公司 | Sulfosulfuron suspension for weed control |
| CN105494367A (en) * | 2016-01-12 | 2016-04-20 | 南宫市荣威生物药业有限公司 | Corn field weeding suspending agent and preparation method thereof |
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Application publication date: 20130130 |