Supported palladium-gold catalyst, and its manufacture

Details Supported palladium-gold catalyst, and its manufacture Supported palladium-gold catalyst, and its manufacture

1983-03-15

1984-12-25

Wright, William G.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502167, 502174, 502200, 502224, B01J 2358, B01J 3102, B01J 2724, B01J 2706

Patent

active

044904819

ABSTRACT:
Supported palladium-gold catalyst of high resistance to poisoning by sulfur compounds, not subject to elution by vinylacetylene and not inducing a substantial formation of oligomers, for use in hydrogenation reactions wherein acetylenics and diolefins are selectively hydrogenated, said catalyst being obtained by the steps of: admixing a palladium compound with an inorganic carrier, roasting in the presence of an oxygen-containing gas, treating with a reducing agent, admixing a halogenated gold compound with the resulting composition, treating with a reducing agent, treating with a compound having a basic reaction so as to lower the halogen content of the catalyst below 10 ppm by weight, and roasting, in the presence of an oxygen-containing gas, the palladium and gold compounds being used in convenient proportions so that the catalyst contains 0.03 to 1% palladium and 0.003 to 0.3% gold by weight.

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