Preparation of palladium-gold catalysts

Details Preparation of palladium-gold catalysts Preparation of palladium-gold catalysts

B - Operations, Transporting

01

J

B01J 21/06 (2006.01) B01J 23/52 (2006.01) B01J 23/66 (2006.01) B01J 35/10 (2006.01) C07C 67/055 (2006.01)

Patent

CA 2683952

A method for preparing supported palladium-gold catalysts is disclosed. The method comprises increasing the porosity of a titanium dioxide support, impregnating the support with a palladium salt, a gold salt, and an optional alkali metal or ammonium compound, and reducing the calcined support. The resultant supported palladium-gold catalysts have increased activity in the acetoxylation.

L'invention concerne une méthode de préparation de catalyseurs de palladium-or supportés. La méthode consiste à: augmenter la porosité d'un support de dioxyde de titane; imprégner le support d'un sel de palladium, d'un sel d'or et d'un composé facultatif de métal alcalin ou d'ammonium; et réduire le support calciné. Les catalyseurs de palladium-or supportés ainsi obtenus présentent une activité d'acétoxylation accrue.

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