Process of making alkyl phosphine compounds by reacting an olefin and a phosphine in the vapor phase over a mineral acid catalyst
US5260485A · kind A · utility
6Cited by
7References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 9, 1992 |
| Grant date | Nov 9, 1993 |
| Priority date | — |
| Expiry date | Mar 9, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/5059
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Alkylphosphines are made by a reaction of gaseous phosphine and the corresponding gaseous olefin in contact with at least one non-oxidizing acid catalyst. Products produced thereby are alkylphosphines which contain substantially no metallic or oxygenating impurities. The process is a continuous process and employs a mineral acid catalyst either in solid form or as a liquid supported on a solid, inert material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.