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Special stabilizer for sulfonylurea herbicides

A technology for sulfonylureas and herbicides, applied in the field of pesticide formulations, can solve problems such as high decomposition rate and instability

Inactive Publication Date: 2018-05-18
JIANGXI ZHONGXUN AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a special stabilizer for sulfonylurea herbicides, which solves the problem of the main sulfonylurea herbicides currently on the market. stability problem

Method used

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  • Special stabilizer for sulfonylurea herbicides
  • Special stabilizer for sulfonylurea herbicides
  • Special stabilizer for sulfonylurea herbicides

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: 10% bensulfuron-methyl dispersible oil suspension concentrate

[0041] First weigh 10 parts of bensulfuron-methyl, 5 parts of nonylphenol polyoxyethylene ether (NP-4), 3 parts of nonylphenol polyoxyethylene ether (NP-10), 4 parts of calcium dodecylbenzenesulfonate , 3 parts of castor oil polyoxyethylene ether, 1 part of organic bentonite, 3 parts of Na 2 HPO 4 and 0.8 parts KH 2 PO 4 , 6 parts of calcium chloride, 1 part of urotropine, methyl oleate up to 100%. Cut with a shearing machine for 30 minutes, and sand with a sand mill until the D95 is less than 5 microns. The test results are as follows:

[0042]

Embodiment 2

[0043] Embodiment 2: 10% pyrazosulfuron-methyl dispersible oil suspension concentrate

[0044] First weigh 10 parts of pyrazosulfuron methyl, 5 parts of nonylphenol polyoxyethylene ether (NP-4), 2 parts of nonylphenol polyoxyethylene ether (NP-10), 4 parts of calcium dodecylbenzenesulfonate , 3 parts of castor oil polyoxyethylene ether, 1 part of organic bentonite, 4 parts of Na 2 HPO 4 and 1 part of KH 2 PO 4 , 5 parts of calcium chloride, 5 parts of urotropine, methyl oleate up to 100%. Cut with a shearing machine for 30 minutes, and sand with a sand mill until the D95 is less than 5 microns.

[0045] The test results are as follows:

[0046]

Embodiment 3

[0047] Embodiment 3: 4% nicosulfuron dispersible oil suspension concentrate

[0048]First weigh 4 parts of nicosulfuron, 5 parts of nonylphenol polyoxyethylene ether (NP-4), 3 parts of nonylphenol polyoxyethylene ether (NP-10), and 3 parts of calcium dodecylbenzenesulfonate , 4 parts of castor oil polyoxyethylene ether, 1.5 parts of organic bentonite, 3 parts of Na 2 HPO 4 and 0.8 parts KH 2 PO 4 , 4 parts of calcium chloride, 2 parts of urotropine, methyl oleate up to 100%. Cut with a shearing machine for 30 minutes, and sand with a sand mill until the D95 is less than 5 microns. The test results are as follows:

[0049]

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PUM

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Abstract

The invention discloses a special stabilizer for sulfonylurea herbicides. The special stabilizer is prepared from raw materials in percentage by mass as follows: 1%-10% of a drying agent, 0.5%-5% of apH value regulator and 1%-5% of urotropine. The special stabilizer is applied to a dispersible oil suspension, and the mass ratio of the special stabilizer to the sulfonylurea herbicides is (1:10)-(10:1). The problems of high decomposition rate and instability when main sulfonylurea herbicides in the current market are processed into the dispersible oil suspensions are well solved.

Description

technical field [0001] The invention belongs to the field of pesticide preparations, in particular to a method used in a dispersible oil suspension [0002] Special stabilizer for sulfonylurea herbicides. Background technique [0003] Since DuPont of the United States successfully developed chlorsulfuron in 1979, sulfonylurea herbicides began to develop rapidly. The discovery of sulfonylurea super-efficient herbicides is an important milestone in the development history of pesticide chemistry. It has been widely used all over the world due to its advantages of high activity, low dosage, wide herbicidal spectrum and strong selectivity. [0004] In 2011, the sales of sulfonylurea herbicides reached USD 2.374 billion, accounting for 11.0% of the entire herbicide market. At the same time, it is also related to the advent of new varieties of such herbicides. Since the first sulfonylurea herbicides came out, nearly 40 varieties have been commercialized. Among them, the sales of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/22A01N47/36A01N25/04A01P13/00
CPCA01N25/22A01N25/04A01N47/36
Inventor 彭述明王贵新刘鹏陈军周斌
Owner JIANGXI ZHONGXUN AGROCHEM
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