Cathode for magnesium production

Details Cathode for magnesium production Cathode for magnesium production

C - Chemistry, Metallurgy

25

C

204/196

C25C 7/02 (2006.01) C25C 3/04 (2006.01)

Patent

CA 1316488

Abstract Cathode for use in magnesium production by electrolysis of molten salts. The cathode consists of compact molybdenum, tungsten or alloys of these metals or consists of substrate coated with molybdenum, tungsten or alloys of these metals. The thickness of the coating is at least 10 - 20µm, preferably at least 50µm. The substrate can be iron or carbon. Carbon coated with molybdenum, tungsten or alloys of these metals can be used as the cathodic face of a bipolar electrode. The wetting of the cathode by magnesium is improved and contaminants in the produced metal is reduced.

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