Magnesium production

Details Magnesium production Magnesium production

C - Chemistry, Metallurgy

22

B

53/261

C22B 7/04 (2006.01) C22B 9/02 (2006.01) C22B 26/22 (2006.01)

Patent

CA 1227042

A B S T R A C T Magnesium is recovered from a slag produced in a pyrometallurgical process and which contains magnesium oxide and other oxides. The slag is delivered, preferably in a hot state, to a reduction stage where the magnesium oxide is reduced and the magnesium vaporised. The reductant includes an alkaline earth metal in non-oxidic form, preferably calcium carbide. The vaporised magnesium is delivered to a condenser where it is condensed directly from the vapour state to a powder form.

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