Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1988-08-25
1990-04-10
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502325, 502338, 502339, 502345, 502347, B01J 2340, B01J 2350, B01J 2372, B01J 2374
Patent
active
049161083
ABSTRACT:
A process for producing supported metal catalysts having increased catalytic activity is provided. This process includes the steps of forming a high surface area porous support of a suitable porous material such as alumina or zirconia, dissolving a salt of a selected catalytic metal in an appropriate supercritical fluid solvent, contacting the porous support with the supercritical fluid solution of the catalytic metal salt to impregnate the porous support with the solution so that the catalytic metal salt may be adsorbed on the surfaces of the support, and removing the supercritical fluid solvent by reducing the pressure or increasing the temperature to change the supercritical fluid from the supercritical fluid phase to the gas phase, which may then be recycled for further use. The insoluble catalytic metal salt is deposited in the form of a film on the surfaces of the support. The catalytic metal salt-containing porous support may then be processed conventionally to produce a substantially pure, high activity supported metal catalyst.
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McLaughlin David F.
Skriba Michael C.
Shine W. J.
Stoltz R. A.
Westinghouse Electric Corp.
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