Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1996-08-13
1997-11-25
Caldarola, Glenn
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502333, 502344, 502339, B01J 2352
Patent
active
056912676
ABSTRACT:
A method for preparing a catalyst wherein a catalytic carrier is impregnated with water-soluble palladium and gold compounds followed by fixing and then reducing the fixed palladium and gold compounds to palladium and gold metal followed by impregnating the carrier with a second amount of a water-soluble gold compound. The second amount of gold compound is fixed then reduced to gold metal. The catalyst then is impregnated with an alkali metal acetate such as potassium acetate. The catalyst can be employed to synthesize unsaturated esters such as vinyl acetate.
REFERENCES:
patent: 4087622 (1978-05-01), Nakamura et al.
patent: 5314858 (1994-05-01), Colling et al.
patent: 5332710 (1994-07-01), Nicolau et al.
patent: 5422329 (1995-06-01), Wlrtz et al.
Flores Azael T.
Nicolau Ioan
Caldarola Glenn
Cassady Donald R.
Hoechst Celanese Corporation
Preisch Nadine
Spiering M. Susan
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