Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1995-02-27
1995-12-19
Prescott, Arthur C.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
560245, C07C 6915, C07C 6705
Patent
active
054769639
ABSTRACT:
Supported catalyst, process for its preparation and its use for the preparation of vinyl acetate
The invention relates to improved Pd/K/Au, Pd/K/Ba and Pd/K/Cd supported catalysts, their preparation and their use for the preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The stated catalysts are prepared by atomizing a solution of corresponding metal salts by means of ultrasonics and then applying them in such limited amounts and within such a limited time to the carrier particles, and beginning to dry them, so that the catalytically active metal salts cannot penetrate into the carrier particles as far as the core but only into a larger or smaller outer part.
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Wirtz Peter
Worner Karl-Fred
Wunder Friedrich
Hoechst AG
Prescott Arthur C.
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