Method for the treatment of acidic leach liquors

摘要

A method (10) for the separation of multivalent species from monovalent species in an acidic leach solution (14). The method (14) comprises the steps of passing the acidic leach solution (14) through a membrane in a membrane treatment step (16) to separate a membrane permeate (20) and a membrane retentate (22). The method also comprises recovering the membrane permeate (20) containing the monovalent species; and collecting the membrane retentate containing the multivalent species.