Method for recovering manganese metal from ferro- manganese

Details Method for recovering manganese metal from ferro- manganese Method for recovering manganese metal from ferro- manganese

C - Chemistry, Metallurgy

25

C

204/46

C25C 3/30 (2006.01)

Patent

CA 1084865

ABSTRACT OF THE DISCLOSURE This invention relates to a method of producing man- ganese metal from ferromanganese by electrolysis in a molten chloride bath. Iron chloride, such as ferrous and/or ferric chloride in a molten form, is contacted with ferromanganese so as to form a liquid phase containing manganese chloride and a solid phase containing an iron precipitate. The liquid phase is then enriched with manganese chloride and feed of iron chloride and electrolyzed in an electrolysis cell. The manganese metal will settle on the cathode of the cell. The method obviates the necessity of having to purify the elec- trolyte continuously as in known methods.

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