Selective Evaporation of the Components of Molten (LiCl–KCl)eut–BaCl2–SrCl2–NdCl3 Mixtures at Low Pressures
2021
The distillation of chlorides from their molten mixtures is experimentally studied under various conditions. In all cases, the dilute solutions of BaCl2, SrCl2, and NdCl3 (1–2 mol % each), as representatives of alkaline, alkaline earth, and rare earth metal chlorides, in the molten LiCl–KCl eutectic mixture are subjected to evaporation at a low pressure (down to ~1 Pa) and a temperature of 753–1033°C. The sublimate and salt melt compositions before and after distillation are analyzed, and conclusions are drawn about the degree of distillation, the selectivity of evaporation of the molten mixture components, and the relative volatilities of various chlorides.
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