Dehydration of acetic acid by azeotropic distillation
US5160412A · kind A · utility
11Cited by
5References
1Claims
0Family size
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Inventor
Key dates
| Filing date | Mar 10, 1992 |
| Grant date | Nov 3, 1992 |
| Priority date | — |
| Expiry date | Mar 10, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Acetic acid is difficult to separate from water by conventional distillation or rectification because of the close proximity of their boiling points. Acetic acid can be readily separated from water by using azeotropic distillation. Typical examples of effective agents are ethyl n-valerate and 4-methyl-2-pentanone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.