Process for the preparation of vinyl acetate

Details Process for the preparation of vinyl acetate Process for the preparation of vinyl acetate

1989-02-07

1990-02-20

Shippen, Michael L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C07C 67055

Patent

active

049028235

ABSTRACT:
The invention relates to a process for the preparation of vinyl acetate in the gas phase from ethylene, acetic acid and oxygen or oxygen-containing gases on a catalyst which contains palladium and/or compounds thereof and if appropriate additionally gold and/or gold compounds and, as activators, alkali metal compounds and if appropriate additionally cadmium compounds, on a support. The support consists of cylindrical particles with curved front faces. The support material is aerogenic SiO.sub.2 or an aerogenic SiO.sub.2 -Al.sub.2 O.sub.3 mixture having a surface area of 50-250 m.sup.2 /g and a pore volume of 0.4-1.2 ml/g, which is formed to the extent of at least 50% by pores having a diameter of 50-200 .ANG..

REFERENCES:
patent: 3939199 (1976-02-01), Fernholz et al.
patent: 4048096 (1977-09-01), Bissot
patent: 4087622 (1978-05-01), Nakamura
patent: 4370492 (1983-01-01), Wunder
patent: 4668819 (1987-05-01), Fernholz et al.

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