Process for preparing a platinum/rhodium catalyst

Details Process for preparing a platinum/rhodium catalyst Process for preparing a platinum/rhodium catalyst

1981-12-21

1983-10-04

Shine, W. J.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502332, B01J 2104, B01J 2342, B01J 2344, B01J 2346

Patent

active

044077386

ABSTRACT:
The process for preparing a regionalized platinum/rhodium catalyst using a single impregnating step. The process is particularly effective in preparing such a catalyst for use as an automotive emissions control catalyst. A substantially alumina support is impregnated in a platinum/rhodium controlled acidic solution of a strong acid and an ammonium salt or equivalent thereof.

REFERENCES:
patent: 4119571 (1978-10-01), Hegedus et al.
patent: 4120821 (1978-10-01), Iizuka et al.
patent: 4128506 (1978-12-01), Hegedus et al.
patent: 4152301 (1979-05-01), Summers et al.
patent: 4153579 (1979-05-01), Summers et al.

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