Separation of 1-pentanol from cyclopentanol by extractive distillation
US5320715A · kind A · utility
225Cited by
3References
1Claims
0Family size
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Key dates
| Filing date | Jan 14, 1994 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | Jan 14, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1-Pentanol is difficult to separate from cyclopentanol by conventional distillation or rectification because of the closeness of their boiling points. 1-Pentanol can be readily separated from cyclopentanol by extractive distillation. Effective agents are ethylene glycol and sulfolane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.