Production of nickel
US8460429B2 · kind B2 · utility
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3References
24Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 12, 2009 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Feb 12, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B23/023
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of smelting a nickel intermediate product in a smelter that contains a molten bath of metal and slag to produce a nickel product, the method comprising supplying the nickel intermediate product and a solid reductant to the smelter and smelting the nickel intermediate product to produce molten nickel, and controlling the chemistry of the slag so that the slag has (a) a high solubility for elements and compounds in the nickel intermediate product that are regarded as contaminants in the nickel product and (b) a liquidus temperature in the range of 1300-1700 C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.