Extracting cobalt from aqueous solutions containing nickel with mono-ester of benzylphosphonic acid
US4671821A · kind A · utility
1Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 26, 1983 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | Aug 26, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for extracting cobalt values from an aqueous solution also containing another metal such as nickel, with an extractant comprising alkyl benzylphosphonic acid is disclosed. An organic solvent such as a low aromatic kerosene can be employed for dilution and dissolution of the extractant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.