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A kind of cyhalofop-ethyl aqueous emulsion and preparation method thereof

A technology of cyhalofop-ester and emulsion in water, which is applied in the field of pesticide processing, can solve the problems of lack of popularization and application, etc., and achieve the effect of simple process, good fluidity and broad prospect of popularization and application

Inactive Publication Date: 2011-11-30
郭方全
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Emulsion in water is a preparation that disperses the liquid pesticide original drug or original drug solution in water with 0.5-1.5m droplets. It does not contain or only contains a small amount of organic solvents, and has the advantages of safe use and low environmental pollution. However, the current market There is a lack of promotion and application of such products on the Internet

Method used

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Examples

Experimental program
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Embodiment

[0010] A cyhalofop-fop emulsion in water, which includes cyhalofop-fop emulsifier, solvent, preservative, thickener, antifreeze and water, and described cyhalofop-fop emulsifier is lauryl Calcium benzenesulfonate, fatty alcohol polyoxyethylene ether (AEO-9), phenylethylphenol polyoxyethylene ether (602#), phenylethylphenol polyoxyethylene ether phosphate (601-P), castor oil polyoxyethylene One or more of vinyl ether (BY-125), alkylphenol polyoxyethylene ether (NP-lo), alkylaryl polyoxypropylene polyoxyethylene ether (33#); the solvent is two Toluene or cyclohexanone; the preservative is formaldehyde; the thickener is xanthan gum or sodium carboxymethylcellulose; the antifreeze is glycerin or ethylene glycol.

[0011] The parts by weight of the raw materials of the preferred formulation of the emulsion in water are: 10 parts of cyhalofop-methyl, 7 parts of emulsifier, 20 parts of solvent, 0.1 part of thickener, 0.1 part of preservative, 5 parts of antifreeze and 57 parts of wat...

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PUM

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Abstract

The invention relates to a method for preparing pesticides, in particular to a cyhalofop-ethyl aqueous emulsion and a preparation method thereof, belonging to the technical field of pesticide processing. The emulsion in water includes cyhalofop-ethyl emulsifier, solvent, preservative, thickener, antifreeze and water, and the original medicine of cyhalofop-ethyl is mixed with emulsifier and solvent and stirred to form a uniform oil phase; , antifreeze, preservative, etc. are mixed together to form a uniform water phase; slowly pour the oil phase into the water phase, and under high-speed (5000-6000r / min.10min) shear emulsification, a well-dispersed milky white liquid is obtained. The cyhalofop-ester aqueous emulsion has good fluidity before and after storage, does not agglomerate, does not separate water, does not separate oil, has good stability, and its biological activity is equivalent to that of the same dose of emulsifiable concentrate. However, the cost is lower than that of emulsifiable concentrate, and the prospect of popularization and application is broad.

Description

technical field [0001] The invention relates to a method for preparing pesticides, in particular to a cyhalofop-ethyl aqueous emulsion and a preparation method thereof, belonging to the technical field of pesticide processing. Background technique [0002] Cyhalofop-buty1 is a diphenyl ether herbicide, which is a selective herbicide widely used in paddy fields at present, and mainly controls grass weeds such as barnyardgrass and dandelion. The main dosage form of the herbicide in the market is 10% emulsifiable concentrate. Because the emulsifiable concentrate contains a large amount of organic solvents such as toluene and xylene, which pollutes the environment greatly, the emulsifiable concentrate has been restricted or banned in some countries, and my country will no longer issue the approval certificate for pesticide emulsifiable concentrate products from August 1, 2009. Constantly updated and developed. Among them, water emulsion is the leading direction for the developm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N39/04A01P13/00
Inventor 郭方全
Owner 郭方全
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