A kind of triple production continuous production method of propynyl alcohol, 1,4-butynediol and urotropine

A technology of butynediol and its production method, applied in 1, can solve problems such as micropore blockage of outlet sand core glass, influence on stable operation of reactor, micronization of catalyst, etc., so as to avoid explosion hazard, avoid reduction of catalyst activity, high Economical effect
CN104387236BActive Publication Date: 2016-08-24HANGZHOU ZJU HOLLEY TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
HANGZHOU ZJU HOLLEY TECH
Publication Date
2016-08-24

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Abstract

The invention discloses a trigeneration continuous production method for propiolic alcohol, 1,4-butinodiol and urotropine, and belongs to the technical field of chemical engineering. According to the method, a formaldehyde aqueous solution (10%-37% wt) and acetylene are taken as raw materials for synthesizing propiolic alcohol and co-producing 1,4-butinodiol and urotropine, the reaction temperature is 80-120 DEG C, the pressure is 1.0-2.5 MPa, and propiolic alcohol with the purity of 99.5% or more, a 1,4-butinodiol aqueous solution and a urotropine aqueous solution are obtained. The conversion rate of formaldehyde in the whole technology is 100%, and the method has the advantages of safety and environment friendliness.
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Description

technical field

[0001] The invention relates to the technical field of chemistry and chemical engineering, in particular to a continuous production method for triple production of propynyl alcohol, 1,4-butynediol and urotropine. Background technique

[0002] Propargyl alcohol is also called propargyl alcohol, 2-propyn-1-ol, and its English name is Propargyl alcohol, referred to as PA. It is an important organic chemical raw material with a wide range of applications. In the pharmaceutical industry, propynyl alcohol is an important intermediate in the synthesis of fosfomycin calcium, fosfomycin sodium, sulfadiazine, etc., and is also used in the production of acrolein, allyl alcohol, and vitamin A. In the pesticide industry, propynyl alcohol is mainly used in the production of moxamethide pesticide, which is a low-toxicity, broad-spectrum acaricide, which is effective in preventing and controlling acarids in various crops such as vegetables, citrus, apples, tea, cotton, and ...

Claims

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