Preparation method of adipic dialdehyde

A technology of adipaldehyde and cyclohexene, which is applied in the field of preparation of adipaldehyde, can solve the problems of high price, excessive oxidation, hindering industrial application, etc., and achieve the effects of reducing production cost, high product selectivity, and improving selectivity
CN111138256AActive Publication Date: 2020-05-12DALIAN 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
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2020-05-12

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Abstract

The invention discloses a preparation method of adipic dialdehyde. The preparation method comprises the following steps: carrying out an oxidation reaction on a cyclohexene-containing mixed solution and an ozone-containing mixed gas under reaction conditions to obtain adipic dialdehyde, wherein the reaction conditions comprise that a molecular sieve supported metal oxide is adopted as a catalyst.According to the method, ozone is used as an oxidizing agent, a molecular sieve supported metal oxide is used as a catalyst, and cyclohexene is subjected to high-selectivity oxidation to produce adipic dialdehyde, so that the defect that precious metal coordination compounds and sodium periodate need to be used in a cyclohexene oxidation reaction is overcome; and ozone is used as an oxidizing agent, cyclohexene is selectively oxidized into adipic dialdehyde, the product selectivity is high, no three wastes are generated, and the method is an environment-friendly process, so that the method hasinnovativeness, economic advantages and industrial application prospects.
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Description

technical field

[0001] The application relates to a preparation method of adipaldehyde, which belongs to the field of chemistry and chemical engineering. Background technique

[0002] 1,6-Adipaldehyde is an important fine chemical product. It is a quick-acting and broad-spectrum chemical sterilizer. It can not only kill most bacteria, bacterial propagules, fungi, spores and viruses quickly and efficiently, but also does not Corrosion of metal instruments and glass and plastic products, because it is harmless to the human body, it can be widely used in the disinfection and sterilization of medical equipment, food utensils, etc. In addition, adipaldehyde is also used in oil extraction, which can inhibit sulfate-reducing bacteria and increase the sulfur content of crude oil. Use sodium periodate / silica gel system to oxidize cyclohexene to prepare trans-1,2-cyclohexanediol, which can prepare 1,6-hexanedial with high selectivity (Perfume, Flavor and Cosmetics, 2006(6):17-20 ). ...

Claims

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