Barium metal oxide catalytic compositions
US4110258A · kind A · utility
10Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 1976 |
| Grant date | Aug 29, 1978 |
| Priority date | — |
| Expiry date | May 14, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24149
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Barium compounds having the general formula ABO.sub.3 and a perovskite crystal structure wherein about from 1% to 20% of the B site cations are ions of a platinum metal and the remainder are ions of metals having atomic radii between about 0.4 and 1.4 Angstroms are useful as catalysts for gaseous oxidation and reduction reactions, particularly for the cleanup of exhaust gases of internal combustion engines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.