Method for preparing azelaic acid

A technology of azelaic acid and oleic acid, which is applied in the direction of carboxylate preparation, organic compound preparation, oxidative preparation of carboxylic acid, etc., can solve the problems of high price, low selectivity, pollution, etc., and achieve the effect of simple process
CN1415593AInactive Publication Date: 2003-05-07LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2003-05-07
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

A process for preparing azeleic acid includes such steps as mixing oleic acid, mesopore molecular sieve W-MCM-41, solution of hydrogen peroxide and tert-butanol, stirring, introducing oxygen and reaction in reflux state. Its advantages are high output rate, cyclic use of said mesopore molecular sieve, and no environmental pollution.
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Description

technical field

[0001] The invention relates to a preparation method of azelaic acid. Background technique

[0002] Azelaic acid is an important intermediate in organic synthesis, and it is a kind of medium-long chain dibasic acid. In recent years, with the rapid development of the organic synthetic chemical industry, the demand for medium and long chain dibasic acids is increasing day by day. Medium and long-chain dibasic acids and their derivatives have a wide range of industrial applications, a broad product market, and high added value. The production of medium and long-chain dibasic acids in my country is seriously insufficient. For sebacic acid, dodecanedioic acid (lauric acid) and tridecanedioic acid (brazilianic acid), there are already manufacturers producing, but the production of azelaic acid , is still blank. The industrial use of azelaic acid is mainly to produce azelaic acid plasticizers, followed by the production of lubricants, polymer synthesis, skin prote...

Claims

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