Vinyl acetate catalyst prepared with potassium aurate and compri

Details Vinyl acetate catalyst prepared with potassium aurate and compri Vinyl acetate catalyst prepared with potassium aurate and compri

1998-06-02

2000-01-25

Wood, Elizabeth D.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502325, 502330, 502339, B01J 2372, B01J 2342

Patent

active

060178477

ABSTRACT:
A catalyst for the production of vinyl acetate by reaction of ethylene, oxygen and acetic acid, comprising a porous support on the porous surfaces of which is deposited catalytically effective amounts of metallic copper, palladium and gold. The catalyst is prepared by steps comprising precoating the support with a water-insoluble form of copper, forming on the precoated support a water-insoluble palladium compound, reducing the palladium compound, and, if not previously reduced, the water-insoluble form of copper, to a catalytically effective amount of the free metal, impregnating the copper and palladium containing support with a solution of potassium aurate, and reducing the potassium aurate to a catalytically effective amount of metallic gold. The inventive process results in a catalyst wherein the Pd, Cu, and Au form a shell metal distribution on the catalyst support.

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Journal of The American Chemical Society, 1927, vol. 49, p. 1221-1226, no month available.

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