Method for manufacture of catalyst used for reduction of nitrogen oxides and the catalyst produced by the method
US4149997A · kind A · utility
4Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1977 |
| Grant date | Apr 17, 1979 |
| Priority date | — |
| Expiry date | Dec 28, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B21/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst having high activity at a low temperature is obtained by heating rhodochrosite in air at a temperature of 300.degree.-500.degree. C. A catalyst having still higher activity at a low temperature is obtained by mixing rhodochrosite with a specific amount of a specific metal compound and heating the resultant mixture in air at a temperature of 300.degree.-500.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.