Solid supported catalysts for catalytic reduction of nitrogen oxides in waste gases
US4119568A · kind A · utility
9Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1975 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Dec 24, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Solid supported catalysts for catalytic reduction of nitrogen oxide in waste gases utilizing ammonia as the reducing agent, the catalyst comprising at least one metallic oxide, sulfate or phosphate of a first transition metal supported on an alumina or silica-alumina carrier; the carrier containing from 0.03 to 20% by weight sulfur, based on the weight of the carrier, calculated as a sulfate or sulfite radical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.