Process for enriching cis or trans-isomers in an olefin stream
US6734332B1 · kind B1 · utility
17Cited by
6References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2002 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Dec 19, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/152
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An olefin product rich in cis- or trans-isomers can be produced by reacting the mixed olefin feedstock with an linear polyaromatic compound such as anthracene under heat, then separating the unreacted olefin enriched in cis-isomer. The remaining linear unreacted polyaromtic compound and the polyaromatic compound-olefin adduct can be heated to dissociate the adduct to linear polyaromatic compound and olefin stream enriched in trans-isomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.