ALUMINIUM ELECTROLYSER WITH ARTIFICIAL CRUST Russian patent published in 2017 - IPC C25C3/08 

FIELD: metallurgy.

SUBSTANCE: electrolyser contains a cathode device, containing a bath of coal bottom, and composed of coal blocks with embedded cathode current conductors, enclosed in a metal housing, with refractory and heat-insulating materials arranged between the metal housing, the anode device, containing one or more carbon anodes, connected by the anode bus, placed in the top of the bath and immersed in the molten electrolyte. The refractory electroinsulating cryolite resistant materials are placed on the peripheral surface of the bottom between the side blocks and anode projection line at the cathode.

EFFECT: reduction of the anode-to-cathode distance (ACD), voltage and power consumption, current yield increase.

4 cl, 1 dwg, 6 tbl