Process for preparing adipic dialdehyde from cyclohexene

A technology for cyclohexene and adipaldehyde, which is applied in the field of preparing adipaldehyde from cyclohexene, can solve the problems of high price, excessive oxidation, hindering industrial application, etc., and achieves high product selectivity, efficient mass transfer, and enhanced material transfer. Effect
CN111138255AActive 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 process for preparing adipic dialdehyde from cyclohexene. The preparation method comprises the following steps: respectively injecting a mixed solution and an ozone-containing mixed gas into a micro-channel reactor, and carrying out an oxidation reaction under reaction conditions to obtain adipic dialdehyde, wherein the mixed solution containing cyclohexene and a metal chloride catalyst. According to the method, a metal chloride catalyst is combined with ozone, so that cyclohexene is selectively oxidized into adipic dialdehyde, the defect that precious metal coordination compounds and sodium periodate need to be used in a cyclohexene oxidation reaction is overcome, substance transfer between two-phase materials is effectively enhanced by adopting a micro-channel reactor and utilizing efficient mass transfer and heat transfer efficiency in the micro-reactor, and the product selectivity can reach 93.5%.
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Description

technical field

[0001] The application relates to a process for preparing adipaldehyde from cyclohexene, which belongs to the field of chemical industry. 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. In addition, as a cross-linking agent, 1,6-hexanedialdehyde has the characteristics of high activity, fast reaction, large binding capacity, stable product, and strong resistance to acid, water, and enzyme...

Claims

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