Catalyst for purifying exhaust gases
US4316822A · kind A · utility
25Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1980 |
| Grant date | Feb 23, 1982 |
| Priority date | — |
| Expiry date | Dec 8, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for reducing nitrogen oxides, carbon monoxide and hydrocarbons, the noxious components in exhaust gases from internal combustion engines, etc., comprising: a porous carrier of ceramic selected from the group consisting of alumina and alumina-magnesia spinel; and a catalyst ingredient supported thereon consisting essentially of zirconium oxide, cerium oxide and a metal selected from the group consisting of platinum, palladium and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.