Extraction of organic compounds from aqueous solutions
US4855053A · kind A · utility
2Cited by
3References
25Claims
0Family size
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Key dates
| Filing date | Dec 18, 1986 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Dec 18, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/909
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for extracting organic compounds which are present in water in the form of solutions or suspensions by a liquid carboxylic acid which is immiscible with water. Branched or unbranched linear acids such as n-heptanoic, n-octanoic, or 2-ethylhexanoic acids make it possible to quantitatively extract compounds such as phenols, amines or amino acids from such aqueous solutions, thereby rendering the process useful for the purification of industrial wastewaters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.