The process is based on hydrometallurgy having the following process steps:
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Reduction Leaching. |
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Filtration to separate insolubles from dissolved metallics. |
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Solvent extraction to separate associated metallic ( Nickel & Copper ) from Cobalt. |
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Electrowinning of pure Cobalt sulphate solution to produce electrolytic grade Cobalt metal of min. 99.80 % purity.
Electrowinning of pure Nickel sulphate solution to produce electrolytic grade Nickel Metal of 99.8% purity. |
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Evaporation / precipitation of pure Cobalt sulphate solution to produce Cobalt salts. |
Process Block-Diagram :
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