Leaching process for nickel cobalt and manganese ores
AssigneeRMG Services Pty. Ltd.
InventorRodolfo A. Gomez
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Abstract
A process for the extraction of nickel, cobalt and manganese from slurries of their ores such as laterite, saprolite or manganese nodules in an aqueous acid solution while irradiating the solution with electromagnetic energy such as microwave energy. The acid may be hydrochloric acid, sulphurous acid and/or sulphuric acid and the acid solution may be blended with high concentrations of halite and magnesium ions to further control the dissolution of magnesia from the ore. A reactor including electromagnetic wave generators is also included.
Claims15
A process for the extraction of nickel, cobalt or manganese from ore containing these metals including the steps of leaching a slurry of the ore in an aqueous acid solution while irradiating the slurry and solution with electromagnetic energy.
A reactor for the acid leaching of aqueous slurries containing nickel cobalt and manganese comprising a vessel including a plurality of electromagnetic wave generators and wave guides to direct electromagnetic energy into the interior of the reactor.
Dependencies are inferred from the claim text.