Decomposing nitrogen oxides with nickel-iron-chromium catalysts
US4029738A · kind A · utility
12Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1974 |
| Grant date | Jun 14, 1977 |
| Priority date | — |
| Expiry date | Nov 18, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Catalyst for the decomposition of nitrogen oxides, particularly for use in catalytic exhaust boxes in view of decomposing the nitrogen oxides contained in the exhaust gases from internal combustion engines, comprising, deposited on a carrier, from 3 to 20% of an active phase of the formula Ni.sub.x (Fe.sub.y Cr.sub.z)O.sub.t, in which x has a value from 0.5 to 1.5, y + z a value from 1.5 to 3, the ratio ##EQU1## A VALUE FROM 0.01 TO 0.9 AND T A VALUE LOWER THAN 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.