CN102077826B - Isoprothiolane emulsion in water and preparation method thereof - Google Patents
Isoprothiolane emulsion in water and preparation method thereof Download PDFInfo
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- CN102077826B CN102077826B CN 200910199470 CN200910199470A CN102077826B CN 102077826 B CN102077826 B CN 102077826B CN 200910199470 CN200910199470 CN 200910199470 CN 200910199470 A CN200910199470 A CN 200910199470A CN 102077826 B CN102077826 B CN 102077826B
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Abstract
An isoprothiolane emulsion in water and a preparation method thereof belong to the field of pesticides, specifically relate to a bactericide isoprothiolane pesticide emulsion in water and a preparation method thereof. The isoprothiolane is a systemic fungicide for preventing and treating rice blast and fringe blast. Currently, pesticide formulations relative to the isoprothiolane mainly include wettable powder, water dispersible granules and emulsifiable solution. Dust contamination can be easily formed in the preparation processes of the wettable powder and the water dispersible granules, and the emulsifiable solution contains large amount of aromatic solvent, such as toluene, dimethylbenzene and the like, which is applied in the farmland and contaminates the environment. So that an aqueous formulation of the emulsion in water (EW) of the isoprothiolane is developed in the invention, and water is used as medium for the EW, and the EW is liquid, so that the dust contamination caused by solid formulations can be avoided, environment pollution caused by the aromatic solvent, such as toluene, dimethylbenzene and the like, is also avoided, petroleum resources can be greatly saved, andcost of the formulations is reduced.
Description
One, technical field
The invention belongs to pesticide field, be specifically related to a kind of bactericide agricultural chemicals aqueous emulsion and preparation method thereof.
Two, background technology
Isoprothiolane (Isoprothiolane), chemical name: 1,3-dithia, penta ring-2-subunit Diisopropyl malonate, 50 ℃-54.5 ℃ of molten points, solvability 54 mg/litre are systemic fungicide in the water, are used for preventing and treating leaf blast in rice, tassel blast.The formulations of pesticide of at present relevant Isoprothiolane mainly contain wetting powder, water dispersible granules and missible oil.But, easily form dust pollution in wetting powder and the water-dispersible grain agent formulation process, contain the aromatic solvents such as a large amount of toluene, dimethylbenzene in the cream preparation and be administered to the farmland pollution environment.Therefore, the present invention develops its waterborne preparation aqueous emulsion agent, use water as medium, adopt liquid formulation, the dust pollution question that does not exist solid pharmaceutical preparation to bring, more can avoid the aromatic solvent environmental pollutions such as toluene, dimethylbenzene of a large amount of uses in the cream preparation, and can save in a large number petroleum resources, reduce the preparation cost.
Three, summary of the invention
The object of the invention prepares a kind of isoprothiolane emulsion in water formulation.Isoprothiolane is dissolved in the solvent, adds again emulsifier, thickener, antifreezing agent, fungusproof anti-corrosion agent and water, adopt high shear mixing emulsification to stir.Active ingredient is gross weight 5-60%, preferred 10-50% in the aqueous emulsion, solvent load 0-20%, preferred 2-15%, emulsifier 0.5-20%, preferred 2-10%.
Technical scheme of the present invention is as described below:
1, a kind of isoprothiolane emulsion in water is comprised of the component of following percentage by weight:
Wherein said emulsifier is selected from emulsifier WJE-880, the emulsifier WJE-818 of Shanghai ten thousand gold medal auxiliary agent Co., Ltds production, one or more among the emulsifier WJF-730; Solvent is selected from one or more in toluene, dimethylbenzene, methyl naphthalene, S-150, S-180, soybean oil, methyl oleate, the mineral oil; Thickener is selected from one or more in xanthans, polyvinyl alcohol, carboxymethyl cellulose, carboxyethyl cellulose, WJZ-01, WJZ-04, the attapulgite; Antifreezing agent is selected from one or more in ethylene glycol, propane diols, the urea; Fungusproof anti-corrosion agent is selected from one or more among formaldehyde, the WJB-20; Wet concentration is from running water or deionized water.
2, a kind of as claimed in claim 1 method of isoprothiolane emulsion in water for preparing: Isoprothiolane is dissolved in the solvent, add again emulsifier, thickener, antifreezing agent, fungusproof anti-corrosion agent and water, adopt high shear mixing emulsification to stir, shear rate is controlled at 1000-3000 rev/min, mixing time 0.5-2 hour, make it to become even emulsion.
Four, embodiment
The invention will be further described below in conjunction with embodiment, but the invention is not restricted to following embodiment.
Embodiment 1:10% isoprothiolane emulsion in water
Preparation method: Isoprothiolane is dissolved among the S-150 by above-mentioned prescription, add again emulsifier, thickener, antifreezing agent, fungusproof anti-corrosion agent and water, adopt high shear mixing emulsification to stir, shear rate is controlled at 1000-3000 rev/min, mixing time 0.5-2 hour.
Embodiment 2:30% isoprothiolane emulsion in water
Preparation method: Isoprothiolane is dissolved in the dimethylbenzene by above-mentioned prescription, add again emulsifier, thickener, antifreezing agent, fungusproof anti-corrosion agent and water, adopt high shear mixing emulsification to stir, shear rate is controlled at 1000-3000 rev/min, mixing time 0.5-2 hour.
Embodiment 3:50% isoprothiolane emulsion in water
Preparation method: Isoprothiolane is dissolved in the soybean oil by above-mentioned prescription, add again emulsifier, thickener, antifreezing agent, fungusproof anti-corrosion agent and water, adopt high shear mixing emulsification to stir, shear rate is controlled at 1000-3000 rev/min, mixing time 0.5-2 hour.
Claims (2)
1. isoprothiolane emulsion in water is comprised of the component of following percentage by weight:
Wherein said emulsifier is selected from emulsifier WJE-880, the emulsifier WJE-818 of Shanghai ten thousand gold medal auxiliary agent Co., Ltds production, one or more among the emulsifier WJF-730; Solvent is selected from one or more in toluene, dimethylbenzene, methyl naphthalene, S-150, S-180, soybean oil, methyl oleate, the mineral oil; Thickener is selected from one or more in xanthans, polyvinyl alcohol, carboxymethyl cellulose, carboxyethyl cellulose, WJZ-01, WJZ-04, the attapulgite; Antifreezing agent is selected from one or more in ethylene glycol, propane diols, the urea; Fungusproof anti-corrosion agent is selected from one or more among formaldehyde, the WJB-20; Wet concentration is from running water or deionized water.
2. one kind prepares the as claimed in claim 1 method of isoprothiolane emulsion in water: Isoprothiolane is dissolved in the solvent, add again emulsifier, thickener, antifreezing agent, fungusproof anti-corrosion agent and water, adopt high shear mixing emulsification to stir, shear rate is controlled at 1000-3000 rev/min, mixing time 0.5-2 hour, make it to become even emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910199470 CN102077826B (en) | 2009-11-27 | 2009-11-27 | Isoprothiolane emulsion in water and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910199470 CN102077826B (en) | 2009-11-27 | 2009-11-27 | Isoprothiolane emulsion in water and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102077826A CN102077826A (en) | 2011-06-01 |
| CN102077826B true CN102077826B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910199470 Expired - Fee Related CN102077826B (en) | 2009-11-27 | 2009-11-27 | Isoprothiolane emulsion in water and preparation method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106962352B (en) * | 2017-03-27 | 2019-07-02 | 中国农业科学院植物保护研究所 | For preventing and treating the oil emu of rice blast |
| CN107593693B (en) * | 2017-10-13 | 2018-09-14 | 四川利尔作物科学有限公司 | Different monooctyl ester missible oil of fluroxypyr of high-efficiency environment friendly and its preparation method and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1406480A (en) * | 2001-09-06 | 2003-04-02 | 湖南化工研究院 | Aqueous emulsion composition containing dimethrin and preparation thereof |
| CN1631159A (en) * | 2003-12-24 | 2005-06-29 | 上海农乐生物制品股份有限公司 | Cyhalothrin-pleocidin water emulsion and preparation method thereof |
| CN101002566A (en) * | 2006-01-17 | 2007-07-25 | 上海农乐生物制品股份有限公司 | High performance aqueous emulsion of cypermethrin, and its preparing method |
| CN101518257A (en) * | 2009-04-10 | 2009-09-02 | 利尔化学股份有限公司 | Bactericidal pesticide composition |
-
2009
- 2009-11-27 CN CN 200910199470 patent/CN102077826B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1406480A (en) * | 2001-09-06 | 2003-04-02 | 湖南化工研究院 | Aqueous emulsion composition containing dimethrin and preparation thereof |
| CN1631159A (en) * | 2003-12-24 | 2005-06-29 | 上海农乐生物制品股份有限公司 | Cyhalothrin-pleocidin water emulsion and preparation method thereof |
| CN101002566A (en) * | 2006-01-17 | 2007-07-25 | 上海农乐生物制品股份有限公司 | High performance aqueous emulsion of cypermethrin, and its preparing method |
| CN101518257A (en) * | 2009-04-10 | 2009-09-02 | 利尔化学股份有限公司 | Bactericidal pesticide composition |
Non-Patent Citations (2)
| Title |
|---|
| 农药水乳剂突破新技术;匿名;《农药信息网》;20080415;第54个水乳剂 * |
| 匿名.农药水乳剂突破新技术.《农药信息网》.2008,第54个水乳剂. |
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| CN102077826A (en) | 2011-06-01 |
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Granted publication date: 20130327 Termination date: 20131127 |