METHOD FOR ELECTROCHEMICAL DISSOLUTION OF SULPHUR-CONTAINING CONCENTRATES AND/OR ORES BY ION-EXCHANGE MEMBRANES

摘要

Te method shall find application for electrochemical dissolution of sulphur-containing concentrates and/or ores in the production of pure metals from natural occurences. The application of specific voltage allows the selective extraction and deposition of different metals, as well as the regeneration of the electrolyte. The method is performed in an electrolytic cage supplied with ion-exchange membrane where the raw material is dissolved and the extracted metal is deposited on the cathode with simultaneous anode regeneration of the electrolyte . The pH of the solution is maintained within boundaries where the active functional group of the membrane remains dissociated, and the voltage have such values where the ore is dissolved and the extracted metal is oxidized.