Separation of ethanol from isopropanol by azeotropic distillation
US5415741A · kind A · utility
86Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1994 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Oct 18, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C31/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Ethanol is difficult to separate from isopropanol by conventional distillation or rectification because of the proximity of their boiling points. Ethanol can be readily separated from isopropanol by azeotropic distillation. Effective agents are acetonitrile and methylene chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.