Method of preparing a catalyst
US4397770A · kind A · utility
9Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1976 |
| Grant date | Aug 9, 1983 |
| Priority date | — |
| Expiry date | Oct 18, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B1/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst suitable for use in the treatment of motor vehicle exhaust emissions is made by contacting a substrate, preferably of an aluminium bearing ferritic alloy, with a first sol of refractory material followed by drying and firing, and preferably then contacting with a second sol of refractory material, which additionally contains a salt convertible to catalytic material, followed by drying and firing. The sols are obtained from refractory material, e.g., alumina, made by a vapor phase condensation method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.