Selective recovery of nickel, cobalt, manganese from sea nodules with sulfurous acid
US4138465A · kind A · utility
4Cited by
4References
3Claims
0Family size
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Key dates
| Filing date | Dec 13, 1977 |
| Grant date | Feb 6, 1979 |
| Priority date | — |
| Expiry date | Dec 13, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Nickel, cobalt and manganese are recovered from deep sea nodules by leaching with sulfurous acid. In addition, selective extraction of nickel and cobalt from copper is achieved by suitable adjustment of process variables such as leaching time and volume and concentration of acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.