Cyhalofop-butyl emulsion in water and preparation method thereof

A technology of cyhalofop-butyl and water emulsion, which is applied in the field of herbicide preparation, can solve the problems of large amount of emulsifier, large amount of emulsifier, many components, etc., and achieves the effects of improving deposition, reasonable components and simplifying processing flow

Active Publication Date: 2017-09-08
YANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] At present, the Chinese patent with the publication number of 101627758 discloses a cyhalofop-ester aqueous emulsion and its preparation method, which not only uses up to 20%-35% of aromatic hydrocarbon solvents such as toluene and xylene, but also alkylphenol polyoxygen The consumption of emulsifiers such as vinyl ether (APEO) is relatively large, and there is serious pollution problem; Publication No. is 101627758A Chinese patent discloses a kind of cyhalofop-ester aqueous emulsion and preparation method thereof, although this method has reduced product cost, Improve the efficacy, but use aromatic hydrocarbon solvents such as toluene and xylene, which have certain negative effects on the human body and the environment; the Chinese patent with the publication number 105454228A discloses a biodegradable cyhalofop-in-water emulsion and its The preparation method, however, uses a large amount of emulsifier, has a lot of ingredients, and is too complicated

Method used

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  • Cyhalofop-butyl emulsion in water and preparation method thereof
  • Cyhalofop-butyl emulsion in water and preparation method thereof
  • Cyhalofop-butyl emulsion in water and preparation method thereof

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preparation example Construction

[0024] A preparation method of cyhalofop-ethyl aqueous emulsion, comprising the steps of:

[0025] (1) Dissolve 6% to 12% of cyhalofop-ethyl technical material in 8% to 15% solvent, and stir until transparent by magnetic force;

[0026] (2) Add 6% to 15% emulsifier and continue to stir to form a uniform oil phase;

[0027] (3) Add 2% to 6% antifreeze to deionized water to form a water phase;

[0028] (4) Under the action of magnetic stirring, add the water phase to the oil phase drop by drop, and stir at a speed of 500-1500r / min for 10-30min to obtain the cyhalofop-in-water emulsion.

Embodiment 1

[0030] (1) Add 4g of cyhalofop-ethyl technical material into a beaker, add 4g of solvent to it, add 4g of emulsifier after fully dissolving, and fully stir to form a homogeneous oil phase;

[0031] (2) Under magnetic stirring, 25 g of water in which 3 g of glycerin was dissolved was added dropwise to the oil phase;

[0032] (3) After the dropwise addition of water was completed, magnetic stirring was maintained at 1200r / min for 20min to obtain 40g of cyhalofop-ester aqueous emulsion.

Embodiment 2

[0034] (1) Add 4g of cyhalofop-ethyl technical material into a beaker, add 3.2g of solvent to it, add 4g of emulsifier after fully dissolving, and fully stir to form a homogeneous oil phase;

[0035] (2) In the case of magnetic stirring, 25.8 g of water in which 3 g of glycerol was dissolved was added dropwise to the oil phase;

[0036] (3) After the dropwise addition of water was completed, magnetic stirring was maintained at 1200r / min for 20min to obtain 40g of cyhalofop-ester aqueous emulsion.

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Abstract

The invention relates to a cyhalofop-butyl emulsion in water and a preparation method thereof and belongs to the technical field of herbicides. The cyhalofop-butyl emulsion in water is prepared from the following raw materials in percentages by mass: 6-12% of cyhalofop-butyl, 8-15% of a solvent, 6-15% of an emulsifier, 2-6% of an antifreezing agent and the balance of water. The cyhalofop-butyl emulsion in water provided by the invention is reasonable in component and clear in preparation principle. The efficient and environment-friendly emulsion in water is prepared by means of a low energy emulsion process, so that the processing flow is simplified, the production cost is lowered, and the product stability and the weed control effect are improved. Meanwhile, depositing, diffusing and permeating properties of a medicine liquid on the surface of a target are improved, and the efficacy is further improved.

Description

technical field [0001] The invention belongs to the technical field of herbicide preparation, and relates to a cyhalofop-ethyl aqueous emulsion and a preparation method thereof. Background technique [0002] Cyhalofop-ethyl is an aryloxyphenoxypropionic acid herbicide, which belongs to the selective herbicide for paddy fields. Undergraduate weeds. Cyhalofop-ethyl is a systemic conductive herbicide, which is absorbed by plant leaves and leaf sheaths, conducted by phloem, and accumulated in the meristem area of ​​plants, inhibiting acetyl-CoA carboxylase (ACCase), stopping fatty acid synthesis, cell The growth and division of the plant cannot proceed normally, and finally leads to the death of the plant. Therefore, the effective deposition, diffusion and penetration of the liquid on the weed leaves is of great significance for the herbicidal effect of cyhalofop-ethyl. [0003] The traditional processing formulations of cyhalofop-ethyl are emulsifiable concentrate, microemul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N39/04A01N25/04A01P13/00
CPCA01N25/04A01N39/04
Inventor 冯建国袁树忠陈麒丞孙陈铖曹洪恩
Owner YANGZHOU UNIV
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