Process for the pretreatment of light olefin fractions
US4520225A · kind A · utility
5Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1983 |
| Grant date | May 28, 1985 |
| Priority date | — |
| Expiry date | Nov 14, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/177
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for the pretreatment of a light olefin fraction, or of a mixture of such fractions, for the purpose of selectively removing the isobutene and butadiene present. In accordance with the invention, the olefin fraction is contacted with boron trifluoride in the gas phase, under such conditions and for such a length of time that the isobutene and the butadiene will polymerize selectively, and the boron trifluoride and the isobutene and butadiene polymers obtained are then conventionally separated from the effluent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.