Catalyst for purifying exhaust gas
US4708946A · kind A · utility
48Cited by
3References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1986 |
| Grant date | Nov 24, 1987 |
| Priority date | — |
| Expiry date | May 21, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for purifying exhaust gas, having deposited on a monolithic honeycomb carrier a catalyst composition comprising an alumina-modified cerium oxide obtained by impregnating a water-insoluble cerium compound with at least one member selected from the group consisting of water-soluble aluminum compounds and alumina hydrates and calcining the product of impregnation, at least one precious metal selected from the group consisting of platinum, palladium, and rhodium, and active alumina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.