Water insoluble composition of an aldoxime extractant and an equilibrium modifier
US6231784A · kind A · utility
12Cited by
16References
30Claims
0Family size
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Key dates
| Filing date | Apr 20, 1998 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Apr 20, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Alternative equilibrium modifiers for use with aldoxime extractants, such as hydroxyl aryl aldoxime extractants, employed in the process for extraction of metal values, particularly copper values, in the extraction from aqueous solutions, in which the extractant and modifiers are employed in an organic solvent phase, the solvent being a water insoluble, water immiscible hydrocarbon solvent, such as a kerosene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.