Transition metal aerogel-supported catalyst

Details Transition metal aerogel-supported catalyst Transition metal aerogel-supported catalyst

1994-06-10

1996-07-23

Langel, Wayne

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

Catalyst or precursor therefor

Silicon containing or process of making

502235, 502236, 502237, 502238, 502239, 502244, 502245, 502259, 502260, 502262, B01J 2108, B01J 2112

Patent

active

055389317

ABSTRACT:
A process for preparing a supported catalyst comprising a transition metal selected from palladium, platinum, nickel, cobalt or copper on an aerogel support, which includes the steps of providing a mixture containing an alkoxide precursor of the aerogel, a chelate complex of the transition metal with a chelating agent having Si(OR).sub.3 anchor groups, and an organic solvent in which the chelate complex is soluble; hydrolyzing the mixture by admixing it with water to form a gel; and converting the gel under supercritical conditions into the transition metal aerogel-supported catalyst. The supported catalyst has an especially homogeneous distribution of the metal component and is suitable, for example, for use as a hydrogenation catalyst.

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