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 67/055 (2006.01) B01J 23/60 (2006.01) C07C 69/15 (2006.01) B01J 23/58 (2006.01) B01J 35/10 (2006.01)

Patent

CA 2018991

The invention relates to a process fox the preparation of vinyl acetate in the gas phase from ethylene, acetic acid and oxygen and/or oxygen-containing gases on a catalyst of palladium and/or compounds thereof, and optionally. in additions gold and/or gold compounds, and, as activators, alkali metal compounds and optionally in addition, cadmium compounds on a support. The support comprises SiO2 or an SiO2-Al2O3 mixture having a surface area of 50-250 m2/g and a pore volume of 0.4-1.2 ml/g, and has a grain size of from 4 to 9 mm. 5 to 20% of the pore volume of the support is farmed by pores having radii of from 200 to 3,000 angstrom and 50 to 90% of the pore volume is formed by pores having radii of from 70 to 100 .ANG.ngstrom.

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