AlCl
3-FeCl
3-NaCl-KCl molten salt baths prepared by bauxite chlorination were treated by such dry processes as evaporation-condensation of FeCl
3 and AlCl
3 from the salt bath and as solidification-sedimentation in the molten salt. The greater evaporation of FeCl
3 is found in the low melting point salt bath in which mole percentages of AlCl
3 and FeCl
3 exceed those of NaCl and KCl. Evaporation of AlCl
3 greater than that of FeCl
3 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 AlCl
3. The best separation is achieved by solidification of iron components after reduction of FeCl
3.
抄録全体を表示