Separation of alkenes from close-boiling alkanes
US5100515A · kind A · utility
9Cited by
18References
28Claims
0Family size
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Key dates
| Filing date | Oct 26, 1990 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | Oct 26, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C7/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An extractive distillation process for separatin at least one C.sub.4 -C.sub.10 alkene (monoolefin) from at least one close-boiling alkane employs a solvent mixture of (a) at least one saturated alcohol (preferably cyclohexanol) and either (b1) at least one sulfolane (preferably cyclotetramethylene sulfone) or (b2) at least one glycol compound (preferably tetraethylene glycol) or (b1)+(b2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.