Quizalofop-p-ethyl water suspension agent and production thereof

A technology of quizalofop-p-p-p-p and water-suspending agent, which is applied in the field of quizalofop-p-p-p-p-p-p-p-p and its preparation method, can solve the problems of low active ingredient content, inconvenient production, storage and transportation, and waste of packaging materials, so as to improve the effective Ingredient content, saving packaging and transportation costs and storage space, and reducing production costs

Inactive Publication Date: 2008-09-24
QINGDAO HANSEN BIOLOGIC SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its weak point is: 1) wherein solvent is an organic solvent, for example: toluene, xylene, methyl alcohol, ethanol, isopropanol, acetone, cyclohexane, industrial methyl sulfide cyclohexane, and use has more impact on the environment Big pollution; 2) The content of active ingredients is low (generally 5-15% when used), which causes serious waste of packaging and brings a lot of inconvenience to production, storage and transportation

Method used

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  • Quizalofop-p-ethyl water suspension agent and production thereof
  • Quizalofop-p-ethyl water suspension agent and production thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Raw material ratio: quizalofop-p-ethyl technical 5Kg, phenethylphenol polyoxyethylene ether 1Kg, nonylphenol polyoxyethylene ether phosphate 1.5Kg, JFC 3Kg, white carbon black 1Kg, xanthan gum 0.2Kg, Ethylene glycol 3Kg, silicone defoamer 0.1Kg, tap water 85.2Kg.

[0039] (2) Preparation process: add all 1Kg of phenylethylphenol polyoxyethylene ether, 1.5Kg of nonylphenol polyoxyethylene ether phosphate, JFC3Kg, ethylene glycol 3Kg, organic silicon defoamer 0.1Kg, 85.2Kg of tap water, stirred for 30 minutes until the materials were evenly mixed. Then add 5Kg of quizalofop-p-ethyl, 1Kg of white carbon black, 0.2Kg of xanthan gum under stirring state, and stir for 1 hour. Then put the material into a ball mill, and ball mill until no visible agglomerate particles. The ball-milled materials are put into the sand mill and sanded to make the particle size meet the specified requirements (generally, the average particle size is below 3 microns). Finally, the material i...

Embodiment 2

[0041] (1) Raw material ratio: quizalofop-p-ethyl 10Kg, phenethylphenol polyoxyethylene ether 1.5Kg, alkylphenol polyoxyethylene ether 2Kg, fast penetrating agent T 5Kg, magnesium aluminum silicate 0.8Kg, xanthan gum 0.15 Kg, glycerin 3Kg, n-octanol 0.5Kg, tap water 77.05Kg.

[0042] (2) Preparation process: add all 1.5Kg of phenylethylphenol polyoxyethylene ether, 2Kg of alkylphenol polyoxyethylene ether, 5Kg of fast penetrating agent T, 3Kg of glycerol, 0.5Kg of n-octanol, and tap water into the mixing kettle. 77.05Kg, stir for 30 minutes until the material is evenly mixed. Then add quizalofop-p-ethyl 10Kg, magnesium aluminum silicate 0.8Kg, xanthan gum 0.15Kg under stirring state, and stir for 1 hour. Then put the material into a ball mill, and ball mill until no visible agglomerate particles. The ball-milled materials are put into the sand mill and sanded to make the particle size meet the specified requirements (generally, the average particle size is below 3 microns). ...

Embodiment 3

[0044] (1) Raw material ratio: quizalofop-p-ethyl 20Kg, alkyl aryl polyoxyethylene polyoxypropylene ether 1.2Kg, nonylphenol polyoxyethylene ether phosphate 2.3Kg, fast penetrating agent T 6Kg, magnesium aluminum silicate 0.5 Kg, xanthan gum 0.12Kg, glycerin 3.5Kg, silicone defoamer 0.15Kg, tap water 66.23Kg.

[0045](2) Preparation process: add all alkyl aryl polyoxyethylene polyoxypropylene ether 1.2Kg, nonylphenol polyoxyethylene ether phosphate 2.3Kg, fast penetrating agent T 6Kg, glycerin 3.5Kg, organic silicon into the mixing kettle Defoamer 0.15Kg, tap water 66.23Kg, stir for 30 minutes until the materials are evenly mixed. Then add quizalofop-p-ethyl 20Kg, magnesium aluminum silicate 0.5Kg, xanthan gum 0.12Kg under stirring state, and stir for 1 hour. Then put the material into a ball mill, and ball mill until no visible agglomerate particles. The ball-milled materials are put into the sand mill and sanded to make the particle size meet the specified requirements (ge...

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Abstract

A quizalofop-ethyl water suspending agent and a preparation method thereof belong to the technical field of herbicide containing a heterocyclic compound. The problem to be solved is as follows: the missible oil preparation in the prior art adopts a plurality of organic solvent and the active ingredient is low. The quizalofop-ethyl water suspending agent and the preparation method thereof have the key technical point that: quizalofop-ethyl is matched with a suitable moistening dispersing agent, an osmotic agent, a thickening agent, an antifreezing agent, a defoaming agent, water, etc., which are evenly dispersed in a water phase through mixing sand grind, thereby making a water based agricultural chemical preparation with high concentration. The preparation method uses less dosage, can save a plurality of wrappages and can effectively reduce the pollution of the environment and the disservice of a medicine applying person.

Description

technical field [0001] The invention belongs to the technical field of herbicides containing heterocyclic compounds, and in particular relates to a quizalofop-p-ethyl aqueous suspension and a preparation method thereof. Background technique [0002] Quizalofop-p-ethyl, chemical name (R)-2-[4-(6-chloroquinoxalin-2-yloxy)phenoxy]ethyl propionate, quizalofop-p-ethyl is in The improved product after removing the inactive optical isomer (levorotatory isomer) during the synthesis of quizalofop, its mechanism of action and herbicidal spectrum are the same as quizalofop, absorbed through the stems and leaves of weeds, and in plants Upward and downward two-way conduction, accumulation in the top and intermediary meristems, inhibition of cell fatty acid synthesis and necrosis of weeds. Quizalofop-ethyl is a highly selective new dry field stem and leaf treatment agent, which is highly selective between grass weeds and dicotyledonous crops, and has a good control effect on grass weeds ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N43/60A01P13/00
Inventor 张黎辉李波陶琳于天丛
Owner QINGDAO HANSEN BIOLOGIC SCI
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