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Determination of solubility of chlorides of d-elements in chloroaluminate melts

V. V. Karpov, V. A. Volkovich, I. B. Polovov, O. I. Rebrin

Abstract


Solubility of several transition metal chlorides (NiCl2, CrCl2, MoCl3, FeCl2) was measured in KCl-AlCl3 based melts. It was found that the solubility of studied metal chlorides depends on K : Al mole ratio. MoCl3 solubility decreases with increasing AlCl3 content. Solubility of CrCl2 and FeCl2 reaches maximum at K : Al ratio of 1 and decreases when this ratio either de-creases or increases. The dependence of NiCl2 solubility on K : Al mole ratio is V-shaped with the maximum near 0.9-0.95. The effect of temperature on solubility of transition metal chlorides in KCl-AlCl3 melts was also investigated. Increasing temperature does not alter the character of «solubility – K : Al mole ratio» dependences.

Keywords


chloroaluminate melts; nickel chloride; chromium chloride; ferric chloride

References


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DOI: https://doi.org/10.15826/chimtech.2014.1.2.699

Copyright (c) 2014 V. V. Karpov, V. A. Volkovich, I. B. Polovov, O. I. Rebrin

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