Catalyst for purifying exhaust gas
US4769356A · kind A · utility
10Cited by
17References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1986 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Jun 17, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Catalysts of reduced cost, for purifying exhaust gases, having smaller thermal expansion coefficients than conventional catalysts, good mechanical strength and large specific surface area are provided at low temperatures. The composition composed of at least re-hydrable alumina, an alkali or alkaline earth metal titanate and fused silica is thermally processed at comparatively low temperatures so as to provide ceramic catalyst carriers which have superior properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.