Patent ID: 6074545
Filing Date: 2000-06-13
Classification: C25C

Abstract:
A process for the electrolytic production of a metal or an alloy comprising:(a) providing an electrowinning apparatus which comprises a cathode-crucible with a solid metal skull covered by a liquid electrolyte containing the metal compound to be produced or alloy materials and having a density lower than the metal and the alloy, and at least one non-consumable anode at a distance from the cathode and partially immersed in the electrolyte, wherein the metal compound is selected from the group consisting of metal fluorides, metal chlorides, metal bromides and metal iodides; and(b) supplying a direct current through the electrolyte to the anode in order to cause cathodic reduction of the metal in a liquid state to act as a liquid cathode and generate heat sufficient to maintain the electrolyte molten.