New process for treating synthesized chlorpyrifos

A chlorpyrifos and process technology, which is applied in the field of synthetic chlorpyrifos treatment process, can solve the problems of large capital investment, economic waste, cumbersome process and other problems in wastewater, and achieve the effect of reducing production cost, reducing production volume, and simple process
CN104592299AInactive Publication Date: 2015-05-06ANHUI COSTAR BIOCHEM CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI COSTAR BIOCHEM CO LTD
Publication Date
2015-05-06
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a new process for treating synthesized chlorpyrifos. The process comprises the following steps: standing for layering after reaction of chlorpyrifos; taking an oil phase from a lower layer, washing with water at first, and then washing the chlorpyrifos by using alcohol; and performing suction filtration and drying to obtain a white chlorpyrifos crude drug finished product. The process provided by the invention is simple, and by adopting the process, the production of wastewater is greatly reduced, the production cost of the chlorpyrifos is reduced, and the finished product is high in purity, less in impurity and light in color. The market competitiveness of the chlorpyrifos is improved.
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Description

technical field

[0001] The invention belongs to the technical field of pesticide production, in particular to a treatment process for synthesizing chlorpyrifos. Background technique

[0002] The chemical name of chlorpyrifos is O, O-diethyl-O-(3,5,6-trichloro-2-pyridyl) phosphorothioate, the international common name Chlorpri-fos, which was successfully developed by Dow Chemical Company of the United States in 1965 , is one of the most productive pesticides in the world so far, and is an organophosphorus pesticide with high efficiency, broad spectrum, low residue and low drug resistance. It has contact killing, stomach poisoning and fumigation effects, and can effectively control rice, wheat, More than 100 kinds of pests such as borers, leaf rollers, armyworms, scale insects, aphids, leafhoppers and pest mites in corn, cotton, sugar cane, tea, fruit trees, flowers and livestock. Its mechanism of action is that by inhibiting the activity of acetylcholinesterase in pests, a l...

Claims

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