Exhaust gas purifying catalyst and process for purifying exhaust gas by use of the catalyst
US7141526B2 · kind B2 · utility
1Cited by
3References
12Claims
0Family size
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Key dates
| Filing date | Apr 15, 2004 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Sep 18, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas purifying catalyst characterized by having zeolite subjected to ion exchange with cerium and deposited on cerium oxide as well and containing platinum and/or palladium, and a process for purifying the exhaust gas using the catalyst. The catalyst, by using zeolite and a noble metal, is enabled to acquire improved durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.