Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1988-05-23
1989-09-19
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
4232135, B01J 2104, B01J 2310, B01J 2344, B01J 2346
Patent
active
048681490
ABSTRACT:
This application relates to a catalyst for treating automotive exhaust. The catalyst comprises a honeycomb carrier having deposited thereon a layer of alumina which has dispersed thereof lanthanum oxide, cerium oxide, palladium oxide and rhodium metal. The lanthanum oxide is present as crystallites that are less than about 25 Angstroms in size. The cerium oxide contains 3% lanthanum in the cerium oxide crystal lattice and the palladium oxide is present as crystallites which are less than about 25 Angstroms in size. A method of manufacturing the catalyst and process for using the catalyst are also disclosed and claimed.
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Allied-Signal Inc.
Criss Roger H.
Molinaro Frank S.
Shine W. J.
Wells Harold N.
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