Polyformaldehyde dimethyl ether synthesis catalyst

A dimethyl ether and catalyst technology, applied in the field of catalysts, can solve the problem of low product selectivity and achieve good yield and good technical effects
CN106582835AInactive Publication Date: 2017-04-26CHINA PETROLEUM & CHEM CORP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2017-04-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a polyformaldehyde dimethyl ether synthesis catalyst. In the prior art, with the application of methanol, methylal and paraformaldehyde as reaction raw materials to synthesize polyformaldehyde dimethyl ether, the activity and the selectivity of the catalyst are low. A purpose of the present invention is mainly to solve the problems in the prior art. The technical scheme of the present invention comprises that by using the polyformaldehyde dimethyl ether synthesis catalyst, the catalyst is a metal ion modified sulfonic acid type polystyrene cation exchange resin, the sulfonic acid type polystyrene cation exchange resin comprises a cross-linked polystyrene skeleton and a sulfonic acid group, and the metal comprises at least one selected from a group IB element and a group VIII element. The polyformaldehyde dimethyl ether synthesis catalyst of the present invention can be used in the industrial production of polyformaldehyde dimethyl ether.
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Description

technical field

[0001] The invention relates to a catalyst for synthesizing polyoxymethylene dimethyl ether. Background technique

[0002] In recent years, with the deepening influence of the industrial revolution and my country's unique resource pattern of "more coal, less oil, and gas", my country's oil resources have become increasingly tense, and the pressure on oil supply has increased unprecedentedly. It is estimated that in the next 10 to 20 years, my country's oil supply rate will only be ~50%. How to use our country's rich coal resources to solve our country's energy crisis has become an urgent problem for scientific researchers. Therefore, the development of new oil substitutes from coal-based methanol has attracted increasing attention.

[0003] DME was first proposed as a diesel additive. However, due to its poor cold start performance, high vapor pressure at room temperature, and easy air resistance, the cost of DME as an alternative fuel for vehicles has incr...

Claims

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