Transition metal oxide Bronsted acid catalysts
US4415480A · kind A · utility
3Cited by
4References
17Claims
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Key dates
| Filing date | Sep 24, 1981 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | Sep 24, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Solid acid catalysts having primarily Bronsted acidity which comprise at least one catalytic metal oxide component selected from the group consisting essentially of oxides of (a) tungsten, niobium and mixtures thereof and (b) mixtures of (a) with tantalum, hafnium, chromium, titanium, zirconium and mixtures thereof, supported on pyrogenic alumina. These catalysts are useful cracking catalysts and have exceptional high temperature steam stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.