Catalyst for selectively oxidizing tertiary butanol or isobutene to synthesize methyl acrylic aldehyde and its use

A technology for synthesizing methacrolein and methacrolein, which is used in physical/chemical process catalysts, preparation of organic compounds, preparation of carbon-based compounds, etc., can solve the problem of shortening the service life of catalysts, deterioration of catalyst performance, catalyst activity or selection Sexual decline, etc.
CN1647853AActive Publication Date: 2005-08-03SHANGHAI HUAYI NEW MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI HUAYI NEW MATERIAL
Publication Date
2005-08-03

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Abstract

The present invention provides a kind of catalyst for selectively oxidizing tertiary butanol or isobutene to synthesize methyl acrolein and its preparation process and application in gas phase catalytic oxidizing synthesis of methyl acrolein. The catalyst of the present invention is one kind of composite oxide containing Mo, Bi, Fe, Co, Sb, Pb, Yb, etc. and has high catalytic activity and stability, long service life, isobutene converting rate higher than 95 % and methyl acrolein selectivity over 86 % in the presence of molecular oxygen.
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Description

technical field

[0001] The invention relates to the preparation of a multi-component composite oxide catalyst for synthesizing methacrolein (MAL) by using tert-butanol or isobutene as raw material through selective oxidation and its application in the selective oxidation reaction of tert-butanol or isobutene. Background technique

[0002] Methyl methacrylate (MMA) is widely used in the fields of national defense, construction and fine chemicals, such as the production of plexiglass, plastic modifiers, advanced environmental protection coatings and adhesives. Although the traditional method of producing MMA—the acetone cyanohydrin method has a mature process, the raw materials are highly toxic and acidic, and the amount of three wastes produced is large, which not only poisons the human body, severely corrodes equipment and seriously pollutes the environment, but also has poor atom economy. In recent years, countries all over the world have carried out the research and develo...

Claims

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