A continuous reaction process method and microchannel reaction equipment for preparing ε-caprolactone

A technology of microchannel reaction and caprolactone, which is applied in chemical instruments and methods, chemical/physical/physical chemical reactors, chemical/physical/physical chemical processes, etc., to maintain reaction temperature, avoid overheating phenomenon, and enhance transmission qualitative effect
CN103539770BInactive Publication Date: 2016-06-08CHANGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGZHOU UNIV
Publication Date
2016-06-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a continuous reaction process for preparing ε-caprolactone and microchannel reaction equipment, belonging to the technical field of organic synthesis. In this method, cyclohexanone is used as the initial reaction raw material, and peracetic acid produced by the reaction of hydrogen peroxide and acetic anhydride is used as the oxidant, and the processes of peroxyacid preparation and cyclohexanone oxidation are continuously completed in a microchannel reactor system. The process method of the present invention can effectively control the temperature of the reaction process, has high safety, does not need to add solvent, catalyst and stabilizer, is beneficial to the separation and purification of caprolactone, and makes it possible to continuously produce ε-caprolactone with high yield; The microchannel reaction equipment proposed by the present invention highly satisfies the requirements of the reaction process. The conversion rate of cyclohexanone in the invention reaches 50%-95%, and the selectivity of ε-caprolactone reaches 80%-100%.
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Description

technical field

[0001] The invention belongs to the technical field of organic synthesis technology, and specifically relates to a continuous reaction process method for preparing ε-caprolactone by oxidation of cyclohexanone as a raw material, and its corresponding process equipment technology. More specifically, it is a continuous reaction process for preparing ε-caprolactone from hydrogen peroxide and acetic anhydride to synthesize peracetic acid in a microchannel reactor, and then oxidizing cyclohexanone with peracetic acid, and the corresponding equipment technology. technical background

[0002] ε-caprolactone is an important organic synthesis intermediate, widely used as a synthetic monomer for new polyester materials to modify various resins to improve their gloss, transparency and anti-sticking properties. Polycaprolactone and its copolymer obtained by copolymerizing it as a monomer are a kind of fully biodegradable polymer materials with good biocompatibility, non-...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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