FIELD: chemistry.
SUBSTANCE: method comprises grinding of mixture to produce a powder and calcination of the mentioned powder at a temperature ranging from 600°C to 800°C to produce basic calcined material, containing aluminium oxide and optionally at least one oxide selected from the group consisting of titanium oxide and iron oxide, mixing of the basic calcined material with a carbonaceous material to produce a mixture; carbochlorination of the mixture with chlorine gas at a temperature ranging from 600°C to 1000°C to produce a gas stream, containing aluminium chloride and optionally at least one chloride selected from the group consisting of iron (III) chloride and titanium chloride, condensation of the gas stream to produce chloride condensate, comprising aluminium chloride optionally at least one chloride selected from the group cosisting of iron (III) chloride and titanium chloride, optionally comprises processing of the chloride condensate for fractional separation of aluminium chloride and optionally at least one chloride selected from the group consisting of iron (III) chloride and titanium chloride, and carrying out of aluminium chloride electrolytic process in electrolysis cell to produce metallic aluminium.
EFFECT: lowered carbon dioxide and perfluorocarbon gases emissions and increased energy efficiency of the process.
12 cl, 2 ex
