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Method for producing ametryn

A technology of atrazine and atrazine, applied in the field of herbicides, can solve problems such as long reaction time, low product yield, harsh conditions, etc., and achieve the effects of reducing the generation of three wastes, reducing production costs, and improving safety

Inactive Publication Date: 2015-03-25
SHANDONG QIAOCHANG CHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

3. Sodium disulfide method: the content of arazine obtained by this production method is only 95%, and the conditions of the production method are harsh, the reaction time is long, the product yield is low, and there are many shortcomings such as impurities

Method used

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  • Method for producing ametryn
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Embodiment Construction

[0009] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0010] The embodiment of the present invention discloses a method for producing atrazine which can not only reduce the amount of solvent, but also reduce product cost and pollution, which specifically includes:

[0011] Using atrazine and sodium methyl mercaptan as raw materials, water as solvent, and quaternary ammonium salt as phase transfer catalyst, the reaction produces atrazine. Among them, the molar ratio of atrazine to sodium methyl mercaptan is 1:1.05 to 1:1.15; the ratio of atrazine to water is 1:2 to 1:4; the ratio o...

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Abstract

The invention discloses a method for producing ametryn. The method is characterized in that the ametryn is prepared from raw materials atrazine and sodium methyl mercaptide by virtue of a reaction with water as a solvent and quaternary ammonium salt as a phase transfer catalyst, wherein the molar ratio of the atrazine to the sodium methyl mercaptide is 1: 1.05 to 1: 1.15; the ratio of the atrazine to the water is 1: 2 to 1: 4; the ratio of the quaternary ammonium salt to the atrazine is 1: 20 to 1: 200; the reaction temperature ranges from 90 to 100 DEG C; and the reaction time ranges from 2 to 5 hours. According to the method for producing the ametryn, the water is taken as the solvent, and compared with a traditional method for synthesizing the ametryn, the dosage of the solvent is reduced, the production cost is reduced, the safety of the reaction process is improved, and meanwhile, the generation of three wastes is reduced, and therefore, the method for producing the ametryn has a higher industrial value.

Description

Technical field [0001] The present invention relates to the field of herbicides, and more specifically to a method for producing Atrmidon. Background technique [0002] Aminojing is a triazine selective systemic herbicide with rapid herbicidal action. After the agent is absorbed by the roots and leaves of the weeds, it will wither and die by inhibiting photosynthesis. At low concentrations, Ammiejing can promote plant growth, not only stimulating the growth of sprouts and roots, promoting leaf area enlargement, thickening diameter, etc.; at high concentrations, it also has a strong inhibitory effect on plants. At present, most of the synthetic methods of atrazine at home and abroad use atrazine as the starting material through related reactions. The main synthetic methods of Atmoxine are: 1. Methyl mercaptan method: The advantage of this method is high yield, but the methyl mercaptan market is scarce, the boiling point is low, transportation is difficult, and it is easy to cause...

Claims

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Application Information

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IPC IPC(8): C07D251/52
CPCC07D251/52
Inventor 任立生侯江涛董红波
Owner SHANDONG QIAOCHANG CHEM
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