Solvent extraction of metals from acidic solutions with quaternary ammonium salts of hydrogen ion exchange agents
US4058585A · kind A · utility
31Cited by
8References
14Claims
0Family size
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Key dates
| Filing date | Nov 10, 1975 |
| Grant date | Nov 15, 1977 |
| Priority date | — |
| Expiry date | Nov 10, 1995 |
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.