Solvent extraction of I-141B from I-365
US5099082A · kind A · utility
11Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1991 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | Aug 28, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Partial or total separation of a mixture of 1,1,1,3,3-pentafluorobutane and 1,1-dichloro-1-fluoroethane by liquid-liquid extraction with solvents containing ethylene glycol, 2-butene-1,4-diol, ethanolamine, propylene glycol, or mixtures thereof, preferably ethylene glycol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.