Extraction process for removal of impurities from an aqueous mixture
US7351396B2 · kind B2 · utility
5Cited by
30References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 5, 2003 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Jun 5, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for removing impurities from an aqueous mixture or purified aqueous by extracting the aqueous mixture or purified aqueous mixture with an extraction solvent in an extraction zone to form an extract stream and the raffinate stream; and optionally separating the extract stream and a solvent rich stream in a separation zone to form a high boiling point organic impurities stream and a recovered extraction solvent stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.