CN102027989B - High content chlorpyrifos suspending agent and preparation method thereof - Google Patents
High content chlorpyrifos suspending agent and preparation method thereof Download PDFInfo
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- CN102027989B CN102027989B CN 201010617791 CN201010617791A CN102027989B CN 102027989 B CN102027989 B CN 102027989B CN 201010617791 CN201010617791 CN 201010617791 CN 201010617791 A CN201010617791 A CN 201010617791A CN 102027989 B CN102027989 B CN 102027989B
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Abstract
The invention relates to a pesticide preparation and a preparation method thereof, in particular to a high content chlorpyrifos suspending agent and a preparation method. The suspending agent consists of the following components in percentage by weight: 20 to 55 percent of chlorpyrifos, 1 to 8 percent of emulsifying dispersant, 0.05 to 2 percent of thickening agent, 3 to 10 percent of anti-freezing agent, 0.01 to 3 percent of bactericidal preservative, 0.05 to 1 percent of defoaming agent, and the balance of tap water. The suspending agent has the advantages that: 1, toxic or harmful solvent is not added in the prepared suspending agent, so environmental pollution and toxicity of the agent are greatly reduced, and the suspending agent is safe to produce and use; and 2, the suspending agent has small grain diameter, good dispersibility, high suspension rate, good fluidity, high bioactivity, low use dose, high absorption and good effect.
Description
Technical field
The present invention relates to a kind of pesticidal preparations and preparation method thereof, relate in particular to a kind of high-content chlorpyrifos suspending agent and preparation method.
Background technology
Chlopyrifos (chlorpyrifos) belongs to organophosphorous pesticide, worldwide is widely used, and has the characteristics of efficient, wide spectrum, low-residual, moderate toxicity.Chemical name O, O-diethyl-O (3,5,6-trichloro-2-pyridyl) phosphorothionate.In nineteen sixty-five exploitation and commercialization, be still in the world flourishing long time large-tonnage pesticide species by Dow Chemical company so far.Since it have tag, stomach toxicity and fumigation action, can be used for numerous areas such as paddy rice, wheat, cotton, vegetables, fruit tree, tea tree, health, can prevent and treat kind of insect surplus the wild snout moth's larva of the snout moth's larva of rice, rice leaf roller, rice fulgorid, cotton tetranychid, aphid, cabbage caterpillar, diamond-back moth, beans, two spotted spider mite, tea geometrid, wriggler, the cockroach etc. 50.Also because it is relatively low to the person poultry toxicity, just becoming the main pesticide species that substitutes the contour malicious agricultural chemicals of acephatemet, therefore boundless market and application prospect are being arranged.
The formulation of chlopyrifos pesticides processing both at home and abroad mainly is that missible oil, aqueous emulsion, microemulsion, granule, wettable powder, microcapsule formulations are arranged, the chlopyrifos suspending agent of report, the especially high-load of domestic exploitation and the registration of also not seeing the chlopyrifos suspending agent.Only there is Beyer Co., Ltd to register 30% chlopyrifos suspending agent product (Gustafson Lorsban 30 Flowable) in the U.S. at present abroad, be unique suspending agent product, have the advantages that to alleviate toxicity and poisoning, raising effective rate of utilization, reduce environmental pollution.
Summary of the invention
Purpose of the present invention is exactly the defective at prior art, provides a kind of environmental pollution little, high-content chlorpyrifos suspending agent and preparation method that the lasting period is long.
Technical solution of the present invention is: be made up of the former medicine of chlopyrifos, emulsifying dispersant, thickener, antifreeze, sterilization antiseptic, defoamer, the percentage by weight of its each component is:
Chlopyrifos 20%～55%
Emulsifying dispersant 1%～8%
Thickener 0.05%～2%
Antifreeze 3%～10%
Sterilization antiseptic 0.01%～3%
Defoamer 0.05%～1%
Surplus is running water.
The present invention's technical solution preferably is:
Chlopyrifos 40%～55%
Emulsifying dispersant 2%～8%
Thickener 0.1%～2%
Antifreeze 3%～8%
Sterilization antiseptic 0.01%～3%
Defoamer 0.05%～1%
Surplus is running water.
In the invention described above, emulsifying dispersant is lauryl sodium sulfate, Nonyl pheno, perfluorinated nonene base benzene sulfonic acid sodium salt, vinyl pyrrolidone/vinyl acetate copolymer, the alkylphenol-polyethenoxy polyethers, alkylphenol-polyethenoxy polyether thiourea hydrochlorate, the alkylphenol-polyethenoxy polyether phosphate, the mixture of vinyl pyrrolidone and methyl vinyl ether/copolymer-maleic anhydride, fatty alcohol-polyoxyethylene ether, lignosulfonates, the polyoxyethylene nonylphenol ether phosphate, polycarboxylate, alkylphenol-polyethenoxy formaldehyde condensation products sulphate, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkylphenol polyoxyethylene formaldehyde condensation products phosphate, styrene phenol formaldehyde resin polyoxyethylene phosphate salt, styryl phenol polyethenoxy polyethenoxy ether, the alkyl naphthalene formaldehyde condensate sulfonates, the dialkyl succinylsuccinate sulfonated ester, Si Pan, in the tween any one or multiple combination.
Antifreeze is one or more combinations in butyl glycidyl ether, polyethylene glycol diglycidyl ether, sorbierite, ethylene glycol, isopropyl alcohol, n-butanol, polyethylene glycol, propane diols, glycerine, the turpentine oil;
Thickener is one or more combinations in bentonite, kaolin, Magnesiumaluminumsilicate, polyvinyl alcohol, polyethylene glycol, sodium cellulose glycolate, gelatin, gum Arabic, xanthans, Sodium Polyacrylate or the soluble starch;
Sterilization antiseptic is one or more combinations in potassium sorbate, Sodium Benzoate, the isothiazolinone;
Defoamer is organosilicon or organic pure defoamer.
The production method of the invention described above suspending agent may further comprise the steps:
(1) at first the former medicine of chlopyrifos is heated to fusing fully;
(2) add emulsifying dispersant, antifreeze, sterilization antiseptic, defoamer and running water more successively, shear 30min through high-speed shearing machine;
(3) homogenate that obtains is joined the sand mill that is connected with chilled brine and grind 2.5h, temperature of charge is controlled at 0～15 ℃.
(4) sand mill sampling and measuring particle diameter reaches requirement, emits material;
(5) add thickener, modulation evenly namely makes the high-content chlorpyrifos suspending agent.
The preferred technical solution of the present invention is: chlopyrifos 55%, the mixture 4% of vinyl pyrrolidone and methyl vinyl ether/copolymer-maleic anhydride, the weight ratio of vinyl pyrrolidone and methyl vinyl ether/copolymer-maleic anhydride is 1: 1 in the mixture, alkylphenol polyoxyethylene formaldehyde condensation products sulphate 3%, xanthans 0.1%, ethylene glycol 3%, Sodium Benzoate 0.3%, silicone defoaming agent 0.2%, running water 34.4%.With the former medicine heat fused of chlopyrifos, the mixture, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, ethylene glycol, formaldehyde, silicone defoaming agent and the running water that add vinyl pyrrolidone and methyl vinyl ether/copolymer-maleic anhydride, stir, after high-speed shearing machine emulsification, pour the sand mill sand milling again into.Pour out after sand mill sampling particle diameter reaches requirement, add xanthans at last, stir, get 55% chlopyrifos suspending agent.
The advantage that the present invention has:
1, the suspending agent of the present invention's preparation does not add poisonous hazardous solvent, greatly reduces the toxicity of environmental pollution and preparation, produces and use safety.
2, little, the good dispersion of particle diameter of the present invention, suspensibility height, good fluidity, biologically active height, using dosage is low, absorption ratio is high, good drug efficacy;
3, the invention belongs to the bigger high-content chlorpyrifos suspending agent technology of preparing of technical difficulty, the content height that possesses skills, remarkable advantage such as production, packing and cost of transportation are low.
Embodiment
For the present invention is described better, can further specifies by following examples, but be not limited thereto:
Embodiment 1
Following each raw material of weighing by weight percentage: chlopyrifos 20%, polyoxyethylene nonylphenol ether phosphate 2%, styryl phenol polyethenoxy polyethenoxy ether 2%, xanthans 0.18%, ethylene glycol 3%, Sodium Benzoate 0.3%, silicone defoaming agent 0.2%, running water 72.32%.With the former medicine heat fused of chlopyrifos, add polyoxyethylene nonylphenol ether phosphate, styryl phenol polyethenoxy polyethenoxy ether, ethylene glycol, potassium sorbate, organosilicon and running water, stir, after high-speed shearing machine emulsification, pour the sand mill sand milling again into.Pour out after sand mill sampling particle diameter reaches requirement, add xanthans at last, stir, get 20% chlopyrifos suspending agent.
Embodiment 2
Following each raw material of weighing by weight percentage: chlopyrifos 30%, vinyl pyrrolidone/vinyl acetate copolymer 2%, sodium lignin sulfonate 3%, xanthans 0.15%, propane diols 3%, Sodium Benzoate 0.3%, silicone defoaming agent 0.2%, running water 61.35%.With the former medicine heat fused of chlopyrifos, add vinyl pyrrolidone/vinyl acetate copolymer, sodium lignin sulfonate, propane diols, Sodium Benzoate, silicone defoaming agent and running water, stir, after high-speed shearing machine emulsification, pour the sand mill sand milling again into.Pour out after sand mill sampling particle diameter reaches requirement, add xanthans at last, stir, get 30% chlopyrifos suspending agent.
Embodiment 3
Following each raw material of weighing by weight percentage: chlopyrifos 40%, perfluorinated nonene base benzene sulfonic acid sodium salt 2%, styrene phenol formaldehyde resin polyoxyethylene phosphate salt 4%, xanthans 0.13%, ethylene glycol 3%, isothiazolinone anticorrosion and bactericidal agent 0.3%, organosilicon 0.2%, running water 50.37%.With the former medicine heat fused of chlopyrifos, add perfluorinated nonene base benzene sulfonic acid sodium salt, styrene phenol formaldehyde resin polyoxyethylene phosphate salt, ethylene glycol, isothiazolinone anticorrosion and bactericidal agent, silicone defoaming agent and running water, stir, after high-speed shearing machine emulsification, pour the sand mill sand milling again into.Pour out after sand mill sampling particle diameter reaches requirement, add xanthans at last, stir, get 40% chlopyrifos suspending agent.
Embodiment 4
Following each raw material of weighing by weight percentage: chlopyrifos 55%, the mixture 4% of vinyl pyrrolidone and methyl vinyl ether/copolymer-maleic anhydride, alkylphenol polyoxyethylene formaldehyde condensation products sulphate 3%, xanthans 0.1%, ethylene glycol 3%, Sodium Benzoate 0.3%, silicone defoaming agent 0.2%, running water 34.4%.With the former medicine heat fused of chlopyrifos, the mixture, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, ethylene glycol, formaldehyde, silicone defoaming agent and the running water that add vinyl pyrrolidone and methyl vinyl ether/copolymer-maleic anhydride, stir, after high-speed shearing machine emulsification, pour the sand mill sand milling again into.Pour out after sand mill sampling particle diameter reaches requirement, add xanthans at last, stir, get 55% chlopyrifos suspending agent.
Embodiment 5
Following each raw material of weighing by weight percentage: chlopyrifos 55%, lauryl sodium sulfate 2%, alkylphenol-polyethenoxy polyether phosphate 2%, lignosulfonates 1%, alkylphenol polyoxyethylene formaldehyde condensation products sulphate 3%, xanthans 0.1%, bentonite 0.1%, ethylene glycol 3%, polyethylene glycol diglycidyl ether 1%, sorbierite 2%, Sodium Benzoate 0.3%, silicone defoaming agent 0.2%, running water 30.2%.With the former medicine heat fused of chlopyrifos, adding lauryl sodium sulfate, alkylphenol-polyethenoxy polyether phosphate, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, ethylene glycol, polyethylene glycol diglycidyl ether, sorbierite, Sodium Benzoate, silicone defoaming agent and running water stirs, after high-speed shearing machine emulsification, pour the sand mill sand milling again into.Pour out after sand mill sampling particle diameter reaches requirement, add xanthans and bentonite at last, stir, get 55% chlopyrifos suspending agent.
Claims (2)
1. high-content chlorpyrifos suspending agent, it is made of by weight percentage following raw materials according:
Chlopyrifos 55%, the mixture 4% of vinyl pyrrolidone and methyl vinyl ether/copolymer-maleic anhydride, the weight ratio of vinyl pyrrolidone and methyl vinyl ether/copolymer-maleic anhydride is 1:1 in the mixture, alkylphenol polyoxyethylene formaldehyde condensation products sulphate 3%, xanthans 0.1%, ethylene glycol 3%, Sodium Benzoate 0.3%, silicone defoaming agent 0.2%, running water 34.4%.
2. the production method of a high-content chlorpyrifos suspending agent, it may further comprise the steps successively: following each raw material of weighing by weight percentage: chlopyrifos 30%, vinyl pyrrolidone/vinyl acetate copolymer 2%, sodium lignin sulfonate 3%, xanthans 0.15%, propane diols 3%, Sodium Benzoate 0.3%, silicone defoaming agent 0.2%, running water 61.35%; With the former medicine heat fused of chlopyrifos, add vinyl pyrrolidone/vinyl acetate copolymer, sodium lignin sulfonate, propane diols, Sodium Benzoate, silicone defoaming agent and running water, stir, after high-speed shearing machine emulsification, pour the sand mill sand milling again into; Pour out after sand mill sampling particle diameter reaches requirement, add xanthans at last, stir, get 30% chlopyrifos suspending agent.
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| CN 201010617791 CN102027989B (en) | 2010-12-31 | 2010-12-31 | High content chlorpyrifos suspending agent and preparation method thereof |
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| CN 201010617791 CN102027989B (en) | 2010-12-31 | 2010-12-31 | High content chlorpyrifos suspending agent and preparation method thereof |
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| CN102027989A CN102027989A (en) | 2011-04-27 |
| CN102027989B true CN102027989B (en) | 2013-09-11 |
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| CN106719864A (en) * | 2016-12-14 | 2017-05-31 | 严帝 | A kind of copolymer as carrier argy wormwood essential oil synergy chlorpyrifos microcapsule and preparation method thereof |
| CN112825852A (en) * | 2020-12-30 | 2021-05-25 | 江苏耘农化工有限公司 | Low-melting-point pesticide water suspending agent and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486606A (en) * | 2003-07-30 | 2004-04-07 | 湖南化工研究院 | Aqueous nano pesticide suspension containing effective pesticidal component and its prepn process |
| CN101427687A (en) * | 2007-11-08 | 2009-05-13 | 联合国南通农药剂型开发中心 | High-content chlorpyrifos microcapsule suspension agent and production method |
| CN101642099A (en) * | 2009-08-31 | 2010-02-10 | 桂林集琦生化有限公司 | Pesticide suspension concentrate with organosilicon surfactant and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08333203A (en) * | 1995-06-10 | 1996-12-17 | Nippon Nohyaku Co Ltd | Stable aqueous suspension pesticide formulation |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1486606A (en) * | 2003-07-30 | 2004-04-07 | 湖南化工研究院 | Aqueous nano pesticide suspension containing effective pesticidal component and its prepn process |
| CN101427687A (en) * | 2007-11-08 | 2009-05-13 | 联合国南通农药剂型开发中心 | High-content chlorpyrifos microcapsule suspension agent and production method |
| CN101642099A (en) * | 2009-08-31 | 2010-02-10 | 桂林集琦生化有限公司 | Pesticide suspension concentrate with organosilicon surfactant and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-333203A 1996.12.17 |
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