Preparation of palladium-gold catalysts
AssigneeLyondell Chemical Technology, L.P.
InventorSteven Augustine
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Abstract
A new method for preparing supported palladium-gold catalysts is disclosed. The method comprises sulfating a titanium dioxide support, calcining the sulfated support, impregnating the calcined support with a palladium salt, a gold salt, and an alkali metal or ammonium compound, calcining the impregnated support, and reducing the calcined support. The resultant supported palladium-gold catalysts have increased activity and stability in the acetoxylation.
Claims20
A method for preparing a supported palladium-gold catalyst, said method comprising
- (a) sulfating a titanium dioxide support;
- (b) calcining the sulfated support;
- (c) impregnating the calcined support with a palladium salt, a gold salt, and an alkali metal or ammonium compound;
- (d) calcining the impregnated support;
- and
- (e) reducing the calcined support from step (d) to form the supported palladium-gold catalyst.
A method for preparing a supported palladium-gold catalyst, said method comprising
- (a) calcining a sulfate-containing titanium dioxide support;
- (b) impregnating the calcined support with a palladium salt, a gold salt, and an alkali metal or ammonium compound;
- (c) calcining the impregnated support;
- and
- (d) reducing the calcined support from step (c) to form the supported palladium-gold catalyst.
Dependencies are inferred from the claim text.