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Aqueous cyhalofop-butyl emulsion and preparation method thereof

The technology of cyhalofop-butyl and water emulsion is applied in the field of selective diphenyl ether stem and leaf herbicide in paddy field and its preparation field, which can solve the problems of environmental pollution, high cost, low use safety and the like, and achieves reduction of environmental pollution. , The effect of stable quality and improved safety

Active Publication Date: 2012-10-10
SHANGHAI XIANGLIN AGRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of serious environmental pollution, high cost and low safety in production, transportation and use of the existing cyhalofop-methyl preparations, the present invention provides a cyhalofop-methyl emulsion in water and a preparation method thereof. The grass ester aqueous emulsion reduces environmental pollution, the toxicity of pesticides and the cost of products, and improves the safety and efficacy

Method used

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  • Aqueous cyhalofop-butyl emulsion and preparation method thereof
  • Aqueous cyhalofop-butyl emulsion and preparation method thereof
  • Aqueous cyhalofop-butyl emulsion and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0012] Dissolve 105g of cyhalofop-ethyl with a purity of 95% in 230 mixed benzene, stir until transparent, add 20g of calcium dodecylbenzenesulfonate, fatty alcohol polyoxyethylene ether phosphate (AEO9-P) in sequence 30g, 100g of trisiloxane, 10g of monoethanolamine, 50g of ethylene glycol, 5g of xanthan gum, 1.0g of polyether modified polysiloxane, slowly add 450g of water to the above mixed material under the condition of high shear emulsifier, The rotating speed of the high-shear emulsifier is 1500 rev / min, and the shearing time is 10 minutes to obtain milky white cyhalofop-in-water emulsion product.

Embodiment 2

[0014] Dissolve 105g of cyhalofop-ester with a purity of 95% in 220g of toluene, stir until transparent with a machine, then add 40g of sorbitan fatty acid ester, styrylphenol formaldehyde resin polyoxyethylene-polyoxypropylene block type Polyether (Nongru No. 33) 20g, fatty alcohol polyoxyethylene ether phosphate (AEO9-P) 30g, trisiloxane 50g diethanolamine 10g, propylene glycol 50g, carboxymethylcellulose sodium (CMC-Na) 3g, 1.0g of polyether-modified polysiloxane, slowly add 471g of water to the above-mentioned mixed material under the condition of a high-shear emulsifier. Cyhalofop-in-water emulsion product.

Embodiment 3

[0016] Dissolve 105g of cyhalofop-ethyl with a purity of 95% in 100g of toluene and 100g of cyclohexanone, stir it until it becomes transparent, then add 30g of calcium dodecylbenzenesulfonate, alkylphenol polyoxyethylene ether phosphate (NP-10-P) 30g, fatty alcohol polyoxyethylene ether (AEO9) 30g, trisiloxane 20g, triethanolamine 5g, diethanolamine 5g, glycerin 30g, carboxymethylcellulose (CMC) 1g, poly Ether-modified polysiloxane 1.0g, above-mentioned mixed material is slowly added water 543g under the condition of high-shear emulsification machine, the rotating speed of high-shear emulsification machine is 4000 rev / min, and shearing time is 20 minutes, both obtained milky white cyanide Fluoxate water emulsion product.

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Abstract

The invention relates to an aqueous cyhalofop-butyl emulsion and a preparation method thereof. The aqueous cyhalofop-butyl emulsion comprises the following components in percentage by mass: 10%-20% of cyhalofop-butyl, 5%-17% of a surface active agent, 0.5%-1% of organic base, 1%-5% of an antifreeze agent, 20%-35% of an organic solvent, 0.1%-0.5% of a thickening agent, 0.1%-0.5% of a defoaming agent, and the balance of water. The preparation method comprises the following steps: dissolving the cyhalofop-butyl into the organic solvent, and adding the surface active agent into the organic solvent after the organic solvent is mechanically stirred to be transparent so as to form an oil phase through stirring uniformly; dissolving the organic base, the thickening agent, the defoaming agent and the antifreeze agent into the balance of water so as to form a water phase; slowly adding the water phase into the oil phase, and shearing the mixture for10-30 minutes by a high-shear emulsifying machine so as to obtain the aqueous cyhalofop-butyl emulsion. The aqueous cyhalofop-butyl emulsion reduces the environment pollution, the pesticide toxicity and the product cost and enhances the safety and the pesticide effect.

Description

Technical field: [0001] The invention relates to a selective diphenyl ether herbicide for stems and leaves of paddy fields and a preparation method thereof, in particular to a cyhalofop-ester aqueous emulsion and a preparation method thereof. Background technique: [0002] Water emulsion is one of the most environmentally friendly formulations of pesticides. A new formulation of pesticides that uses water as an auxiliary material is an environmentally friendly green pesticide formulation that conforms to the development direction of pesticide formulations in the world. It is also one of the main pesticide formulations in developed countries. Since there is no organic solvent in it, or a small amount of organic solvent has formed an O / W emulsion, the organic solvent is completely surrounded by water, has a high flash point, is not easy to burn, and has no risk of fire and explosion, effectively solving the problem of pesticides being transported as dangerous goods At the same...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N39/04A01N25/04A01P13/00
Inventor 谢祥其张强黄坚慧邓志博周省金戴色琴
Owner SHANGHAI XIANGLIN AGRI TECH CO LTD