Palladium-containing catalyst for treatment of automotive exhaust and method of manufacturing the catalyst
US4868149A · kind A · utility
29Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | May 23, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.