Heterogeneous catalytic reaction rectification synthesis method of cyclopropane compound

Abstract

The invention provides a heterogeneous catalytic reaction rectification synthesis method of a cyclopropane compound, belongs to the technical field of aerospace industrial fuel, and aims to solve the technical problems of low process integration level, difficulty in serialization, low production capacity and the like due to the fact that alkaline hydroxide is used as a catalyst in the prior art. A catalytic reaction rectifying tower is used as a reaction device, and a pyrazoline derivative is used as a reaction raw material to prepare the cyclopropane compound. The catalytic reaction rectifying tower comprises an upper rectifying section, a middle reaction section and a lower stripping section; the reaction section is filled with a catalyst, the pyrazoline derivative is fed from the upper part of the reaction section and is in contact with the catalyst to perform denitrification reaction, the cyclopropane compound is extracted from the top of the tower, and the unreacted pyrazoline derivative and ketazine compound are collected at the bottom of the tower. According to the invention, pyrazoline derivatives are continuously fed from the upper part of the reaction section and are in contact with a catalyst, products are continuously removed, reactants are left for continuous reaction, and the reaction is continuously carried out towards the direction of generating cyclopropane compounds; the coupling integration of reaction and rectification is realized, and the production capacity of products is improved on the whole.