Preparation of bimetallic catalysts for hydrodechlorination of c

Details Preparation of bimetallic catalysts for hydrodechlorination of c Preparation of bimetallic catalysts for hydrodechlorination of c

1995-07-07

1997-06-10

Caldarola, Glenn A.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502331, 502514, 585733, B01J 3700, B01J 2358, B01J 2372, C07C 100

Patent

active

056375484

ABSTRACT:
A process for preparing a bimetallic catalyst useful for the hydrodechlorination of chlorinated hydrocarbons, comprising impregnating a support with an active hydrogenating metal from a salt solution of the metal, recovering and drying the thus-impregnated support, reducing the impregnated support by exposure to hydrogen and oxidizing the active hydrogenating metal on said support to an oxidized state by exposure to an oxidizing environment, then impregnating the thus-treated support with a surface segregating metal from a salt solution thereof, aging the support/salt solution mixture over a period of time at an elevated temperature, and finally cooling, recovering and drying the catalyst before charging the same to a reactor for reduction or reduction and chloride source pretreatment and subsequent use.

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