Method for synthesizing low-conductivity amide compound aqueous solution

A technology of amide compound and synthesis method, which is applied in the field of synthesis of low-conductivity amide compound aqueous solution, can solve the problems of long reaction time, high product conductivity, high post-processing cost, etc., and meet the needs of high-end customers and low impurity content Effect
CN110157751AInactive Publication Date: 2019-08-23英德市云超聚合材料有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
英德市云超聚合材料有限公司
Publication Date
2019-08-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for synthesizing a low-conductivity amide compound aqueous solution. The method for synthesizing the low-conductivity amide compound aqueous solution comprises the following steps that in a solution system with a biocatalyst with nitrile hydratase activity, a corresponding amide compound is synthesized from a nitrile compound, and the temperature in the synthesis process ranges from 9 DEG C to 14 DEG C. According to the method, acrylamide is synthesized through a microbiological method at a low temperature; for a 42% acrylamide product, the by-product crylic acid content is low (0.0846%), and the conductivity of the product is 400 micro Scm<-1>.
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Description

Technical field

[0001] The present invention relates to the technical field of the manufacture of acrylamide aqueous solutions, and in particular to a method for synthesizing low-conductivity amide compound aqueous solutions. Background technique

[0002] At present, the main substrate for the production of acrylamide is acrylonitrile, which is highly toxic and volatile. Inhalation of the human body mainly causes neurological damage and is a carcinogen. The method for producing acrylamide from acrylonitrile is a hydration reaction, where water and acrylonitrile are used as reactants to hydrate to produce acrylamide. The catalyst is an important factor affecting the hydration reaction. The mainstream catalyst of acrylamide has undergone three transformations since the emergence of acrylamide. First, it was prepared by hydration with sulfuric acid as a catalyst; afterwards, the hydration method with copper as the catalyst was improved; the latest and most efficient method is the m...

Claims

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