Olefin purification process
US5095172A · kind A · utility
9Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1991 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Mar 20, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/177
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Vinylidene olefin is removed from an olefin mixture containing about 1 to 55 mole percent vinylidene olefin, 0 to 20 mole percent internal olefin, and the balance vinyl olefin, by: PA0 (A) reacting the olefin mixture in the presence of a BF.sub.3 -water and/or organic promoter catalyst system so as to selectively dimerize said vinylidene olefin, and PA0 (B) separating said vinyl olefin and internal olefin from the dimerized vinylidene olefin to produce an olefin product having a reduced vinylidene olefin content compared to said olefin mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.