Catalytic washcoat and method of preparation of the same
US4900712A · kind A · utility
30Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1988 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Sep 30, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/0221
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is concerned with a method of adsorbing uniformly onto preformed high surface area crystalline alumina one or more catalytically active non-noble (doping) oxide(s) and preferably alumina-stablilizing non-noble doping oxide(s), both from substantially neutral aqueous colloidal solutions thereof, drying and calcining the doped alumina to form an improved washcoating composition for receiving additionally catalytic noble metal particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.