Reaction device for fully hermetically producing azamethiphos

A technology of picoline phosphorus and a reaction device is applied in the field of reaction devices that can be fully sealed to produce picoline phosphorus, and can solve the problems of easily affecting the production environment and human health, adverse environmental protection, affecting sealing, and the like, so as to eliminate harmful effects. Gas leakage, beneficial to environmental protection, effect of increasing contact time

CN103073593BInactive Publication Date: 2015-06-03NINGBO YUANLI CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-06-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a reaction device for fully hermetically producing azamethiphos, which includes a first reaction unit, a second reaction unit and a third reaction unit, wherein the first reaction unit includes a rotational-flow kettle, an oxazole [4,5-b] pyridine-2(3H) ketone storage tank, an N,N-dimethylformamide storage tank, a paraformaldehyde storage tank and a thionyl chloride storage tank, wherein the first reaction unit includes a first powder-liquid mixing pump; the first powder-liquid mixing pump includes a first inlet and a first outlet; the oxazole [4,5-b] pyridine-2(3H) ketone storage tank, the N,N-dimethylformamide storage tank and the paraformaldehyde storage tank are communicated with the first inlet; the first outlet is communicated with the rotational-flow kettle; the rotational-flow kettle includes a first main body; the first main body is hollow and forms a first reaction chamber; and the first reaction chamber is an inverted cone structure. The reaction device provided by the invention radically avoids harmful gas leakage and facilitates the environmental protection.
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Description

technical field

[0001] The invention relates to a device for producing picoline, in particular to a fully sealed reaction device for producing picoline. Background technique

[0002] Pyridophos-methyl, also known as pyridophos-methyl, is an excellent insecticide, and its chemical name is S-[6-chloro-oxazole(4,5-b)pyridin-2(3hydrogen)-one group -Methyl]-O,O-dimethyl phosphorothioate with the formula C 9 h 10 ClN 2 o 5 PS, the molecular weight is 324.68. Pyridophos is an excellent acaricide with insecticidal activity. It is a contact and stomach poison with good long-lasting effect and wide insecticidal spectrum. It can be used in cotton, fruit trees, vegetables and livestock, public health and family , prevent and control various mites and moths, aphids, leaf lice, small borers, potato beetles, flies, cockroaches, etc. This agent has low toxicity to humans and animals, and is a safe agent with high efficiency, low toxicity, and low residue. Therefore, picophos Become th...

Examples

Embodiment Construction

[0026] Specific embodiments of the present invention will be described in further detail below based on the accompanying drawings. It should be understood that the specific embodiments described here are only examples, and are not intended to limit the protection scope of the present invention.

[0027] see Figure 4, is a block diagram of a fully sealed reaction device for the production of picoline provided by the present invention. The device includes a first reaction unit 400 , a second reaction unit 500 , and a third reaction unit 600 connected to the first and second reaction units 400 and 500 . The first reaction unit 400 is used to produce branched chlorinated intermediates. The second reaction unit 500 is used to produce intermediate phosphorothioate. The above-mentioned two kinds of intermediate products, ie branched chain chlorinated products and phosphorothioate, finally enter the third reaction unit 600, and produce the final product pyridinate after condensati...