Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1995-01-09
1997-01-28
Beck, Shrive
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502325, 502355, 4232135, B01J 2356
Patent
active
055977723
ABSTRACT:
The invention relates to a method of making a rhodium containing phase of a catalyst system useful to treat the exhaust gases of an internal combustion engine. The method comprises hydrothermally pre-treating the alumina prior to its impregnation with a preferably low loading of rhodium. Preferably the alumina is .alpha.-alumina.
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patent: 4172047 (1979-10-01), Gandhi et al.
patent: 4526886 (1985-07-01), Joy, III
patent: 4717781 (1988-01-01), Imai et al.
patent: 4904633 (1990-02-01), Ohata et al.
patent: 5266548 (1993-11-01), Koradia et al.
Gandhi Harendra S.
McCabe Robert W.
Usmen Rengin K.
Beck Shrive
Ford Motor Company
May Roger L.
Meeks Timothy H.
Melotik Lorraine S.
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