Continuous production device for catalytic reaction by adopting phase transfer catalyst

Abstract

The invention discloses a continuous production device for catalytic reaction by adopting a phase transfer catalyst. The continuous production device can meet the catalytic reaction which is carried out through the phase transfer catalyst. The continuous production device is composed of multi-grade reactors connected in serials. Raw materials continuously enter a grade-I reactor through a feeding port, a reaction mixture and a catalyst enter a grade-II reactor through an overflow port, a sintering metal filter core which is installed on the upper end of a secondary reactor continuously filters and separates clean liquid, and serum containing solid particles continuously returns into the grade-I reactor to be continuously reacted through a serum backflow pipeline via an outlet at the bottom of the secondary reactor. By adopting the continuous production device, continuous operation of the phase transfer catalyst catalytic reaction is realized.

Description

technical field [0001] The patent of the invention relates to a chemical production equipment, in particular to a continuous production equipment for catalytic reaction using a phase transfer catalyst. technical background [0002] In the catalytic reaction process, although homogeneous catalysis has the advantages of high reactivity and mild reaction conditions, its industrial application is limited due to the difficulty of recycling the catalyst. Reaction-controlled phase transfer catalyst is a new type of catalyst that has the advantages of both homogeneous catalysts and heterogeneous catalysts. It is solid before the reaction, and is dissolved in the reaction system due to the action of one of the substrates during the reaction to carry out the homogeneous catalytic reaction. , after the reaction is over, when the substrate is exhausted, the catalyst can be separated from the reaction system, and can be recycled by separation (science, 2001, 292, 1139), wherein the phosp...

AI Technical Summary

Problems solved by technology

[0002] In the catalytic reaction process, although homogeneous catalysis has the advantages of high reactivity and mild reaction conditions, its industrial application is limited due to the difficulty of recycling the catalyst.

Reaction-controlled phase transfer catalyst is a new type of catalyst that has the advantages of both homogeneous catalysts and heterogeneous catalysts. It is solid before the reaction, and is dissolved in the reaction system due to the action of one of the substrates during the reaction to carry out the homogeneous catalytic reaction. , after the reaction is over, when the substrate is exhausted, the catalyst can be separated from the reaction system, and can be recycled by separation (science, 2001, 292, 1139), wherein the phosphotungstopolyacid salt with the characteristics of reaction-controlled phase transfer It has good activity in the epoxidation reaction of olefins, and the process of catalyzing the oxidation of cyclohexene to cyclohexene by hydrogen peroxide has been industrialized (Mechanisms in homogeneous and heterogeneous epoxidation catalysis ISBN: 978-0-444-53188-9 2008 ). However, since the catalyst must be separated, continuous production cannot be achieved

Images