Method of preparing cyclic carbonate by converting zinc-based catalyst into carbon dioxide

Abstract

The invention discloses a method of preparing cyclic carbonate by converting zinc-based catalyst into carbon dioxide. The method of preparing the cyclic carbonate by converting the zinc-based catalystinto the carbon dioxide uses the carbon dioxide and epoxides as raw material, conjugated zinc porphyrin / conjugated zinc porphyrin biphenyl amine microporous polymer material as heterogeneous catalysts, and tetra-n-butylammonium bromide as co-catalysts, and achieving high efficiency green catalytic synthesis of cyclic carbonate under normal temperature and pressure without solvent. The method ofpreparing the cyclic carbonate by converting the zinc-based catalyst into the carbon dioxide has the main advantages of simple preparation method, low cost, high catalytic activity, stable structuralperformance, easy recovery, reusable, mild reaction conditions, fast speed, operational safety and applicability for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of organic synthesis, and in particular relates to a method for preparing cyclic carbonate by converting carbon dioxide with a zinc-based catalyst. Background technique [0002] With the development of society and the progress of human civilization, especially the rapid development of industry, the demand for fossil energy consumption is increasing day by day. With the extensive use of fossil fuels, the concentration of carbon dioxide rises rapidly and becomes a major greenhouse gas, causing a series of environmental and ecological problems. At the same time, carbon dioxide is an ideal carbon resource that is widely distributed, abundant in reserves, cheap and easy to obtain, renewable, non-toxic and non-flammable. No matter from the perspective of environmental protection or the utilization of renewable resources, the research on the capture and chemical conversion of carbon dioxide is of great significanc...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a heterogeneous catalyst with simple synthesis steps, cheap and easy-to-obtain raw materials, high catalytic efficiency, stability and easy recovery in view of the low efficiency of the current reaction system under mild conditions. Under the condition of high pressure and no solvent, it can be converted into cyclic carbonate with high efficiency, which can be widely used in the field of industrial production