Method of preparing adipinic acid using bionic catalytic oxggen to oxidize cyclohexane

A technology of oxygen oxidation and biomimetic catalysis, applied in chemical instruments and methods, preparation of organic compounds, preparation of carboxylate, etc., can solve the problem of high energy consumption, and achieve the effect of simple reaction operation, easy operation and good catalytic performance
CN1556088AInactive Publication Date: 2004-12-22BEIJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
BEIJING UNIV OF TECH
Publication Date
2004-12-22
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A bionic process for preparing hexanedioic acid by catalytic oxidation of cyclohexane features that under existance of catalyst which may be metallic phthalocyanine, single-nucleus metallic porphyrin, or mu-oxy-dual-nucleus metallic porphyrin, the hexane and O2 take part in oxidizing reaction at 110-160 deg.C for 4-32 hr.
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Description

technical field

[0001] The invention relates to a method for preparing dicarboxylic acid, in particular to a method for preparing adipic acid by biomimetic catalyzing oxygen oxidation of cyclohexane. Background technique

[0002] One of the current methods for preparing adipic acid is the cyclohexane air-nitric acid oxidation method, that is, under high temperature and high pressure, cyclohexane is oxidized by air to form a mixture of cyclohexanol and cyclohexanone (KA oil), and then oxidized by nitric acid to form adipic acid. The disadvantage of this method is that the equipment is seriously corroded, the energy consumption is high, the operation is cumbersome, and the second step of nitric acid oxidation produces a large amount of NO x , seriously pollute the environment. In order to overcome the shortcomings of the two-step method, some people use Co, Mn, Cu acetate or transition metal-substituted aluminum phosphate molecular sieves (such as cobalt aluminophosphate CoA...

Claims

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