Process for the separation of dienic and/or aromatic hydrocarbons present in hydrocarbon fractions
US4316796A · kind A · utility
1Cited by
4References
2Claims
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Key dates
| Filing date | Sep 12, 1980 |
| Grant date | Feb 23, 1982 |
| Priority date | — |
| Expiry date | Sep 12, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Dienic and/or aromatic hydrocarbons are separated from hydrocarbon fractions employing known liquid-liquid extraction and/or extractive distillation procedures and at least one sulfonamide solvent conforming to the general formula ##STR1## wherein R', R" and 4'" can be linear or branched, saturated or unsaturated, aliphatic groups possessing from 1 to 18 carbon atoms, wherein two or three of groups R', R" and R'" can be identical, wherein one of the groups R" and R'" can be replaced with a hydrogen atom, and wherein at least one of groups R', R" and R'" is unsaturated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.