Abstract
AlCl3-FeCl3-NaCl-KCl molten salt baths prepared by bauxite chlorination were treated by such dry processes as evaporation-condensation of FeCl3 and AlCl3 from the salt bath and as solidification-sedimentation in the molten salt. The greater evaporation of FeCl3 is found in the low melting point salt bath in which mole percentages of AlCl3 and FeCl3 exceed those of NaCl and KCl. Evaporation of AlCl3 greater than that of FeCl3 is confirmed in the high melting point salt bath with excess of NaCl and KCl. The alkali metal chlorides are heavily transfered from the molten salt with AlCl3. The best separation is achieved by solidification of iron components after reduction of FeCl3.
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