Enhanced extraction of valeric acid or caproic acid from aqueous mixtures
US5254255A · kind A · utility
2Cited by
1References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 15, 1992 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Oct 15, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Extraction of valeric and/or caproic acid from an aqueous solution containing adipic acid and/or methyl glutaric acid using an organic solvent is enhanced by carrying out the process using an extraction-enhancing acid, such as acetic or isobutyric acid, which is soluble in the organic solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.