Sulphided platinum group metal-silicalite dehydrogenation catalysts
US4795732A · kind A · utility
50Cited by
9References
6Claims
0Family size
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Key dates
| Filing date | Dec 19, 1986 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Dec 19, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/50
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Alkanes are dehydrogenated to alkenes, for example n-butane to n-butenes by contact with a catalyst comprising a silicalite and a platinum group metal the catalyst being substantially free of alkali and alkaline earth metals. The selectivity of the product to butenes is improved by either presulphiding the catalyst or by passing a minor amount of a sulphur-containing compound with the alkane feed. The catalyst can be prepared by either forming the silicalite in the presence of the platinum group metal or alternatively contacting preformed silicalite with a solution of a platinum group metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.