Process for the preparation of vinyl acetate

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

C - Chemistry, Metallurgy

07

C

260/494.2

C07C 67/035 (2006.01) B01J 23/52 (2006.01) B01J 35/02 (2006.01) C07C 69/15 (2006.01) B01J 35/10 (2006.01)

Patent

CA 1333721

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 sup- port consists of cylindrical particles with curved front faces. The support material is aerogenic SiO2 or an aerogenic SiO2-Al2O3 mixture having a surface area of 50-250 m2/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.ngströms.

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