FIELD: metallurgy.
SUBSTANCE: invention relates to nonferrous-metals industry, in particular to composition of electrolyte for electrolytic production of aluminium by electrolysis of fluoride melts. Electrolyte contains in wt %: sodium fluoride 26-43, potassium fluoride - below 12, lithium fluoride - below 5, calcium fluoride 2-6, alumina 2-6, aluminium fluoride and admixtures - rest.
EFFECT: increased solubility of alumina in electrolyte at temperature 830-930°C, at that carbon and inert electrode materials are not disintegrated, no special methods of aluminium cleaning of the melt components are necessary.
3 cl, 1 tbl
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