Abstract
The synthesis of carnallite from the spent electrolyte of magnesium cells and a chlorine-magnesium solution is studied. The process parameters that ensure the formation of synthetic carnallite that meet the requirements of the magnesium industry are determined. Specifically, the synthesis temperature is 100–130°C, the initial concentration of magnesium chloride in a solution is 290–400 g/l, the consumption of spent electrolyte is 105% of the stoichiometric composition, and the particle size is 0.315 mm. The sequence of synthesis operations is as follows: heating of a chlorine-magnesium solution and a spent electrolyte to 110–120°C, their mixing in a reactor, electrolyte dissolution, the evaporation of a reaction mass during agitation, and drying.
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Original Russian Text © M.Yu. Shirev, V.A. Lebedev, 2011, published in Izvestiya VUZ. Tsvetnaya Metallurgiya, 2011, No. 6, pp. 25–30.
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Shirev, M.Y., Lebedev, V.A. New process of synthetic carnallite production. Russ. J. Non-ferrous Metals 52, 485–489 (2011). https://doi.org/10.3103/S1067821211060150
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DOI: https://doi.org/10.3103/S1067821211060150