Environment-friendly high-efficiency method for synthesizing adipic acid by catalytically oxidating adipic dialdehyde

A catalytic oxidation, environment-friendly technology, applied in the direction of chemical instruments and methods, preparation of organic compounds, physical/chemical process catalysts, etc., can solve the problems of environmental pollution, high price, high cost, etc., and achieve an environmentally friendly catalytic conversion process, significantly Industrial application value, low cost effect
CN103450004AInactive Publication Date: 2013-12-18FUDAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
FUDAN UNIV
Publication Date
2013-12-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of chemical engineering, and particularly relates to an environment-friendly high-efficiency method for synthesizing adipic acid by catalytically oxidating adipic dialdehyde. According to the invention, by using a tungsten-base material as a catalyst and a 10-70 wt% hydrogen peroxide aqueous solution as an oxidant, the adipic dialdehyde is aqueous catalytically oxidated to synthesize the adipic acid. The method provided by the invention has the advantages of mild conditions, simple technique, low cost and high yield. The yield of the adipic acid is up to 95-99%, and the purity is at least 99.0%. Due to the adoption of the hydrogen peroxide aqueous solution as the oxidant, the reaction is a solventless system, thereby solving the problem of environment friendliness in the traditional nitric acid oxidation process, and achieving the goal of an environment-friendly catalytic conversion technique.
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Description

technical field

[0001] The invention belongs to the technical field of chemical industry, and in particular relates to an environmentally friendly method for synthesizing adipic acid by catalytically oxidizing adipaldehyde with aqueous hydrogen peroxide solution. Background technique

[0002] Adipic acid is an important organic dibasic acid, which is mainly used in the manufacture of nylon-66 fibers and resins. It can also be used in the production of lubricants, plasticizers, and medicine. It has a wide range of uses. The traditional nitric acid oxidation method is seriously corroded due to equipment. and generate a large number of N 2 O pollutants are gradually phased out. In recent years, there are also reports on the air oxidation of cyclohexane (ChemSusChem. 2012, 5, 1213-1217) and biological methods (Biotechnol. Prog. 2002, 18, 201-211; CN 102482638A) to prepare adipic acid, but The operation process is expensive, the device is huge, and the yield of adipic acid is ...

Claims

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