Separating vinylcyclohexene from a butadiene extracting solvent
US5382745A · kind A · utility
1Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1994 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Apr 29, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a method of separating a butadiene extracting solvent that forms an azeotrope with vinylcyclohexene from a mixture with vinylcyclohexene. The mixture is cooled to a temperature below 0.degree. C. which results in the formation of a vinylcyclohexene phase over an extracting solvent phase and the two phases are physically separated. Also disclosed is apparatus suitable for performing this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.