Catalyst for vinyl acetate manufacture

Details Catalyst for vinyl acetate manufacture Catalyst for vinyl acetate manufacture

B - Operations, Transporting

01

J

B01J 23/656 (2006.01) B01J 23/52 (2006.01) B01J 23/68 (2006.01) C07C 67/055 (2006.01) C07C 67/38 (2006.01) C07C 69/15 (2006.01)

Patent

CA 2220937

A catalyst, as for example, one useful for the manufacture of vinyl acetate from acetic acid, ethylene, and oxygen consisting of the metals palladium, gold, and a metal of the group consisting of zirconium and rhenium on a porous support. The catalyst is manufactured by adsorbing water-soluble salts of the metals onto the support, precipitating the metal as a water-insoluble salt, and reducing the salt to the metal.

L'invention concerne un catalyseur qui est utile, par exemple, pour la fabrication d'acétate de vinyle à partir d'acide acétique, d'éthylène et d'oxygène. Ce catalyseur contient les métaux palladium et or, et un métal choisi dans le groupe constitué par le zirconium et le rhénium, sur un support poreux. Le catalyseur est fabriqué en absorbant des sels hydrosolubles de ces métaux sur le support, en précipitant les métaux sous la forme de sels insolubles et en réduisant le sel en métal.

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