SYSTEMS AND METHODS OF PROTECTING ELECTROLYSIS CELL SIDEWALLS Russian patent published in 2019 - IPC C25C3/08 C25C7/00 

FIELD: chemistry.

SUBSTANCE: group of inventions relates to an electrolysis cell for producing aluminum. Electrolysis unit according to version 1 comprises an anode, a cathode in a distance from the anode position, a molten electrolyte bath containing at least one bath component, electrolytic cell housing having a bottom and a side wall consisting essentially of said at least one bath component. Side wall has thickness from 3 to 500 mm and heat flow through it is not more than approximately 4 kW/m². Side wall additionally comprises first part of side wall and second part of side wall, which passes into upper position relative to bottom of electrolyser, wherein second part of side wall is overlapped at some distance with first part of side wall. Sediment of feeding material is held in location adjacent to side wall from touching wall to not more than 24 inches from wall. Feed material includes said at least one bath component. Concentration of the bath component in the molten electrolyte bath not adjacent to the side wall of the bath is in range of 90 to 100 % saturation.

EFFECT: absence of a block along the entire inner side wall or its part.

16 cl, 3 tbl, 11 dwg, 6 ex