Copper recovery from sulfate solutions containing nickel and cobalt
US4118221A · kind A · utility
3Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1977 |
| Grant date | Oct 3, 1978 |
| Priority date | — |
| Expiry date | Oct 7, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Copper is separated from nickel present therewith in a sulfate solution by neutralizing to precipitate all the copper and some nickel as basic compounds, and thereafter reducing the copper in the basic compounds to elemental form through formation of cuprous sulfite and thermal dissociation of the latter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.