Supported quaternary ammonium catalyst, its preparation method and application

A catalyst, supported technology, applied in the preparation of oxygen-containing compounds, chemical instruments and methods, preparation of organic compounds, etc., can solve the problems of poor catalyst stability and easy loss of active components.
CN105268484BActive Publication Date: 2018-02-13CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2018-02-13

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Abstract

The invention relates to a supported quaternary ammonium catalyst, its preparation method and application, and mainly solves the problems of poor catalyst stability and easy loss of active components in the prior art. The supported quaternary ammonium catalyst of the present invention has the following average structural formula (1): it can be used in the industrial production of dialkyl carbonate prepared by transesterification.
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Description

technical field

[0001] The present invention relates to a supported quaternary ammonium catalyst, its preparation method and its application. Background technique

[0002] Dimethyl carbonate (DMC) has active chemical properties, excellent physical properties, and is non-toxic and easily biodegradable. It is a new low-pollution, environmentally friendly green basic chemical raw material, which can be used as solvent, gasoline additive, lithium-ion battery Electrolytes and carbonylation, methylation and carbonylmethoxylation reagents are widely used in chemical and chemical fields. At present, countries are actively researching green chemical processes based on DMC, an environmentally friendly chemical raw material. Among them, the transesterification method has become a method with great industrial prospects due to its mild reaction conditions, high yield and co-production of ethylene glycol or propylene glycol.

[0003] In general, alkali metal hydroxides, alkali metal car...

Claims

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