FIELD: nonferrous metallurgy. SUBSTANCE: method involves loading a preset portion of silicon-containing oxide feedstock jointly with alumina on electrolyte crust. Said loading is carried out within 24 h every 3-6 h with the mass of loaded portion ranging from 0.2-0.4% (in terms of SiO2) of the weight of electrolyte. EFFECT: higher efficiency. 1 tbl
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