Homogeneous catalysis low boiling point olefin hydrogen peroxide continuous reaction method and system

Abstract

The oxidizing continuous reaction method by homogeneous catalysing lower-boiling olefin hydrogen peroxide uses the azeotropy of water and constituents in reaction liquid to remove most water and increase epoxide yield and realize continuity; the catalyst needs not to separate and can recycle. The reaction system comprises mainly: a reactor, a condenser, a rectification tower, an oil-water separator, and a gasifier. Wherein, it uses thermal energy of reaction self and benzene solution to distill off the residual material.

Description

technical field

[0001] The invention relates to a reaction system for continuous production of epoxy compounds by epoxidation of low-boiling olefins with hydrogen peroxide, which belongs to the technology of continuously producing epoxy compounds by oxidizing low-boiling olefins and hydrogen peroxide as raw materials and using heteropolytungstophosphate as a catalyst. Background technique

[0002] Epoxy compounds are very important organic intermediates. At present, except that ethylene oxide can be directly produced by air oxidation of ethylene, the production methods of epoxy compounds of other olefins are prepared by indirect oxidation method, chlorohydrin method or peracid method, and there are co-products and environmental pollution respectively. And other issues. Hydrogen peroxide is a very clean oxygen source. In recent years, there have been many studies on catalyzing the epoxidation of olefins with hydrogen peroxide as the oxygen source. In the system, a large amo...

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