METHOD FOR OBTAINING MAGNESIUM-CALCIUM ALLOYS BY ELECTROLYSIS Russian patent published in 2013 - IPC C25C3/36 C25C3/02 

FIELD: metallurgy.

SUBSTANCE: method for obtaining magnesium-calcium alloys involves electrolysis of molten electrolyte. As molten electrolyte there used is waste electrolyte of magnesium production, which contains the following, wt %: KCl not less than 68, NaCl 12-24, MgCl₂ 4-9, CaCl₂ 0.7-2. Electrolysis is performed at superposition of alternating current on direct current at maintaining total current density equal to 0.3-0.8 A/cm², and its reduction proportionally to reduction of content of magnesium and calcium in the electrolyte. As a result, magnesium-calcium alloy is obtained, wt %: Mg 60-80; Ca 20-40 and mixture of chlorides, which contains the following, wt %: NaCl 15-25; KCl 75-85; MgCl₂ 0.1-0.4; CaCl₂ 0.04-0.2.

EFFECT: obtaining from waste electrolyte of magnesium production of magnesium-calcium alloy and saline mixture for production of covering fluxes; reducing saline wastes and improving ecology of the environment.

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