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Fomesafen microemulsion and preparation method thereof

A technology of fomesafen and microemulsion, which is applied in the field of fomesafen microemulsion and its preparation, can solve the problems of pesticide residues, etc., and achieve the effects of low environmental pollution, high utilization rate of raw materials, and high absorption rate

Inactive Publication Date: 2009-10-14
BEIJING GREEN AGROSINO BIOENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the large and frequent use of chemically synthesized pesticides, pesticide residues and resistance to pests and weeds have resulted

Method used

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  • Fomesafen microemulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] 5% fomesafen microemulsion. Get 5.3kg of 95% fomesafen technical substance, put it in 5kg of methanol solvent co-solvent, drop into 8kg of phenethylphenol polyoxyethylene polyoxypropylene ether after dissolving, 6kg of alkylbenzene sulfonate, 12kg of dehydration Sorbitan fatty acid ester surfactant, 0.5kg synergistic ether, 0.5kg phenyl glycidyl ether, after fully stirring, then solvent is dropped into the homogeneous that 58.7kg dispersion medium water and 4kg ethylene glycol antifreeze are housed Vigorously mixed and homogenized in an evaporator to obtain a clear and transparent 5% fomesafen microemulsion.

example 2

[0025] 10% fomesafen microemulsion. Get 10.6kg of 95% fomesafen former medicine, place in 8kg of cyclohexanone solvent co-solvent, drop into 7kg of alkylphenol polyoxyethylene ether after dissolving, 5kg of alkylbenzene sulfonate, 13kg of ethylene oxide Alkylnonylphenol condensate surfactant, 0.5kg butanobuterol, 0.5kg sodium sorbate, after fully stirring, put the solvent into a homogenizer containing 51.4kg of dispersion medium water and 4kg of propylene glycol antifreeze Mix vigorously and homogenize to obtain a clear and transparent 10% fomesafen microemulsion.

example 3

[0027] 15% fomesafen microemulsion. Get 95% fomesafen former medicine 15.8kg, place in the acetone solvent cosolvent of 10kg, drop into 6kg fatty alcohol ethylene oxide adduct sulfonate after dissolving, 7kg alkylnaphthalene sulfonate, 12kg ring Oxyethane nonylphenol condensate surfactant, 0.5kg castor oil, 0.5kg sodium sorbate, after fully stirring, put the solvent into the homogenizer that 44.2kg dispersion medium water and 4kg propylene glycol antifreeze are housed Intensely mixed and homogenized to obtain a clear and transparent 15% fomesafen microemulsion.

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Abstract

The invention discloses a fomesafen microemulsion and a preparation method thereof, wherein the fomesafen microemulsion is a new preparation formulation which is novel, efficient, low-toxicity and pollution-free, is safe for human beings and livestock and is not easy to generate drug resistance on weed; the preparation formulation dissolves the fomesafen in organic solvent by utilizing the action of a surface active agent, and the fomesafen is dispersed in water to form the transparent preparation. The prepared fomesafen microemulsion comprises the following components by weight percent: 1-20% of fomesafen, 5-25% surface active agent, 5-15% of latent solvent, 0.01-5% of stabilizing agent, 0.5-5% of synergistic agent, 0.1-5%of penetration promoting agent and the balance of water. The invention has high use ratio of raw materials, simple technology and low production cost and is a novel agricultural weedicide formulation.

Description

technical field [0001] The invention relates to a pesticide herbicide, in particular to a fomesafen microemulsion and a preparation method thereof. Background technique [0002] Fomesafen, chemical name: 5-[2-chloro-4-(trifluoromethyl)phenoxy]-N-(methylsulfonyl)-2-nitrobenzamide, molecular structure : [0003] [0004] Fomesafen is a selective diphenyl ether herbicide, mainly used to control broad-leaved weeds in soybean fields, such as chrysanthemum, amaranth, quinoa, cocklebur, Polygonum curcuma, amaranth, wolfberry, black nightshade, Purslane, etc., have a certain inhibitory effect on grass weeds. [0005] Due to the large and frequent use of chemically synthesized pesticides, pesticide residues and resistance to diseases, insect pests and weeds have resulted. In recent years, in developed countries such as the United Kingdom and the United States, the restrictions on the use of organic solvents in pesticide preparations have become increasingly strict, and xylene h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N25/30A01N41/04A01P13/00
Inventor 李鹏徐踪跃徐万涛王成吴俊玲周晨光吴家全陈义明李凤明齐正红王丹玉马学成
Owner BEIJING GREEN AGROSINO BIOENG TECH
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