FIELD: metallurgy; metallurgy of light metals; production of aluminum.
SUBSTANCE: proposed method includes heat treatment of aluminum oxide with carbon, obtaining aluminum vaporous subhalogenide followed by its evacuation from reaction zone, cooling and separation of metallic aluminum. Heat treatment with carbon is performed in melt of aluminum oxide with salts of haloid acids in presence of trihalogenide in production of vaporous aluminum subhalogenide per operation cycle. Besides that, vaporous aluminum subhalogenide is obtained from foam-and-liquid phase at intensive mixing of melt in gas lift unit.
EFFECT: reduced temperature of process; enhanced economical efficiency due to reduced power requirements.
2 cl, 1 dwg, 1 ex
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