Russian Journal of Non-Ferrous Metals

, Volume 52, Issue 6, pp 485–489 | Cite as

New process of synthetic carnallite production

  • M. Yu. ShirevEmail author
  • V. A. Lebedev
Metallurgy of Nonferrous Metals


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.


synthetic carnallite chlorine-magnesium solution spent electrolyte classification mixing dissolution synthesis 


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Copyright information

© Allerton Press, Inc. 2011

Authors and Affiliations

  1. 1.Ural Federal UniversityYekaterinburgRussia

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