ELECTROLYTIC METHOD OF THE EXTRACTION OF METALS

摘要

The invention pertains to the complete extraction of metals from electrolytic solutions by the combined means of electrodialysis and electrolysis. The invention solves the problem on how to extract metals from these solutions at high efficiency. To assure the high efficiency extraction of elements, the problem is solved first by separating the electrolytic solution into base and acid solutions via electrodialysis processing. At the same time the elements found in the base solution are selectively extracted in an electrolyzer that contains an ion-exchange membrane and a mercury cathode. Selected elements are made to migrate at the top surface of the mercury cathode, which is isolated from the processing chamber of the electrolysis unit by a dielectric barrier.