METHOD OF FLUX PRODUCTION FOR MELTING AND REFINING OF MAGNESIUM OR ITS ALLOYS Russian patent published in 2013 - IPC C22B9/10 C22B26/22 

FIELD: metallurgy.

SUBSTANCE: solid sodium bromide is loaded in heated vessel, fused salt is pouted on its surface and heated. Molten mix is mixed and discharged from said vessel as-fused. Fused salt is pouted on sodium bromide surface at weight ratio of 1:(0.26-0.30). Said fused salt represents waters of electrolytic production of magnesium and chlorine, say, used electrolyte. Note here that said heated vessel is composed of continuous-action stationary carnallite furnace mixer, furnace hearth being heated to 300-370°C. Fused mix is mixed for 10-15 min. Produced flux may contain the following components at the following ratio: 9-20 wt % of NaBr, 4-9 wt % of MgCl₂, 60-70 wt % of KCl, 12-24 wt % of NaCl, 0.7-4.0 wt % of CaCl, and not over 2 wt % of H₂O.

EFFECT: higher purity of magnesium or its alloys, reduced formation of slag.

6 cl, 1 ex