METHOD FOR RECOVERING COBALT FROM COBALT-CONTAINING ORES

摘要

A method for recovering cobalt from an oxidised cobalt-containing ore, the method comprising the steps of: Applying to the oxidised cobalt-containing ore an aqueous solution of a cobalt reducing agent at a pressure of between about atmospheric pressure and about 5 atmospheres, at a temperature between about 5°C and about 65°C, to provide a cured ore more amenable to washing with an aqueous wash solution in mixture with the aqueous solution of a cobalt reducing agent; Washing the cured ore-aqueous solution of the reducing agent mixture with an aqueous wash solution for a period of less than 24 hours at a pressure of between about atmospheric pressure and about atmospheres, at a temperature between about 5°C and about 65°C, producing a cobalt-containing solution containing at least 0.01 gl:1 cobalt, and a spent ore; Separating the cobalt containing solution from the spent ore; and Recovering cobalt from the cobalt-containing solution.