Compositions useful in process for extraction of metal values from acidic solutions
US4128493A · kind A · utility
13Cited by
7References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 8, 1977 |
| Grant date | Dec 5, 1978 |
| Priority date | — |
| Expiry date | Aug 8, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Process of extracting metals using organic solvent solutions of salts of hydrogen ion exchange agents and quaternary ammonium compounds. Organic solvent solutions of such quaternary ammonium salts of hydrogen ion exchange agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.