Separation of 3-methyl-2-butanol from 2-pentanol by extractive distillation
US5417814A · kind A · utility
7Cited by
7References
1Claims
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Key dates
| Filing date | Dec 5, 1994 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Dec 5, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C31/125
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
3-Methyl-2-butanol is difficult to separate from 2-pentanol by conventional distillation or rectification because of the proximity of their boiling points. 3-Methyl-2-butanol can be readily separated from 2-pentanol by extractive distillation. Effective agents are acetamide or 2,2,2-trichloroethanol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.