High temperature neutralization of laterite leach slurry
US3991159A · kind A · utility
33Cited by
3References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 9, 1975 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | Jan 9, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B23/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The pregnant solution obtained from high pressure and high temperature leaching of nickel-cobalt bearing low magnesium oxidic ores is neutralized at high temperature and pressure by coordinating the leaching of the low magnesium ores with the leaching of nickel-cobalt bearing high magnesium ores, the leach slurry from said low magnesium ore being neutralized by mixing it with said high magnesium ore which is simultaneously leached with said solution to produce a final pregnant solution from which metal values are subsequently recovered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.