Extractive distillation of hydrocarbons employing solvent mixture
US4921581A · kind A · utility
17Cited by
21References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1989 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | May 26, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S203/09
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An extractive distillation process for separating at least one cycloalkane from at least one close-boiling alkane employs as solvent a mixture of (a) at least one saturated C5-C9 alcohol (preferably cyclohexanol) and (b) at least one glycol compound (preferably tetraethylene glycol).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.