Use of ionic liquids to separate olefins, diolefins and aromatics
US7019188B2 · kind B2 · utility
21Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2002 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Feb 26, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/11
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to the separation of olefins, diolefins and lower aromatics from mixed streams of hydrocarbons using ionic liquids in the absence of metal compounds. The present invention eliminates the metal complexes conventionally used in such separation and thus reduces the complexity of the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.