Reductive ammoniacal leaching of nickel and cobalt bearing materials
US7601314B2 · kind B2 · utility
0Cited by
7References
22Claims
0Family size
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Key dates
| Filing date | Apr 8, 2004 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Jun 29, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the recovery of nickel and/or cobalt from an impure nickel, cobalt or mixed nickel/cobalt material including the steps of: a) providing a nickel, cobalt or mixed nickel/cobalt material; and b) contacting the nickel, cobalt or mixed nickel/cobalt material with a feed ammoniacal ammonium carbonate solution and a reductant in a leach step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.