Всесоюзный научно-исследовательский и проектный институт алюминиевой, магниевой и электродной промышленности
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FIELD: non-ferrous metallurgy. SUBSTANCE: to remove admixtures of alkali and alkali- earth metals, hydrogen, and non-metals, conditions are created to prevent release of aluminium chloride and its involvement into admixtures' chlorination process. The goal is provided by that treatment of melt with chlorine-gas mixture is carried out in presence of sodium chloride and 2-3 wt % of carbon. EFFECT: increased refinement degree, reduced loss of aluminium chloride with leaving gases. 2 cl, 1 tbl
SU3849171/02A1985-01-291985-01-29Method of refining aluminium and its alloys
SU1345642A2
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