Catalyst for purifying exhaust gases and method for manufacturing same
US4350613A · kind A · utility
40Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1981 |
| Grant date | Sep 21, 1982 |
| Priority date | — |
| Expiry date | Mar 10, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/58
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for purifying an exhaust gas comprising a carrier substantially composed of calcium aluminate and titanium oxide. The carrier is deposited with a platinum group metal or a metal oxide capable of oxidizing reductive gases into innoxious ones. The titanium oxide is applied on the surface of the carrier or incorporated in the carrier. The carrier may further comprise a transition metal oxide showing catalytic activity. A method of making a catalyst is also disclosed in which titanium oxide is applied on the surface of a solid mass of calcium aluminate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.