Low copper NO.sub.x reduction catalyst
US4111849A · kind A · utility
5Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1972 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Nov 13, 1992 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A durable catalytic structure capable of catalyzing the reduction of NO.sub.x gases found in the exhaust stream emanating from an internal combustion engine substantially without the generation of ammonia is provided which comprises a heat resistant metallic substrate having adhering to at least a part of the surface thereof a catalytic alloy of a nickel base material and copper with the weight ratio of the nickel base material to copper being at least equal to, but preferably greater than, about 9 to 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.