Catalyst for synthesizing ethylidene diacetate

Abstract

The invention relates to a catalyst for synthesizing ethylidene diacetate and a preparation method of the catalyst for synthesizing ethylidene diacetate. According to the catalyst and the preparation method, the problems that an ethylidene diacetate catalyst is relatively low in activity and selectivity in the prior art are mainly solved. The catalyst comprises a carrier as well as nickel, molybdenum and tin which are loaded to the carrier, wherein the content of nickel is 3.0g / L-15.0g / L, the content of molybdenum is 1.0g / L-5.0g / L, and the content of tin is 0.5g / L-5.0g / L; the carrier is selected from at least one of silicon oxide and aluminum oxide. According to the technical scheme, the technical problems are well solved. The catalyst can be applied to the industrial production of vinyl acetate.

Description

technical field

[0001] The invention relates to a catalyst for synthesizing diethylene acetate, a preparation method and a synthesis method of diacetate. Background technique

[0002] Production of vinyl acetate and acetic acid. The novel part of the whole process is the hydroformylation reaction of methyl acetate, the catalyst is modified with rhodium chloride and β-picoline and methyl iodide, and the carbon monoxide insertion reaction is the key point of the whole technology.

[0003] The preparation method of synthesizing diethylene diacetate by methyl acetate has been disclosed by US4,429,150 (titled: Manufacture of ethylidene diacetate), namely with methyl acetate or methyl ether, carbon monoxide and hydrogen as raw materials, catalyst adopts VIII Diethylene acetate is synthesized in the presence of halides or acetates and phosphorus-containing polar solvents. US5,354,886 (title: Catalysts on inorganic carriers for producing ethylidene diacetate) mentioned that RhCl ...

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