Production of magnesium metal

Details Production of magnesium metal Production of magnesium metal

C - Chemistry, Metallurgy

22

B

53/265

C22B 26/22 (2006.01)

Patent

CA 1219451

13 ABSTRACT OF THE DISCLOSURE Magnesium metal is formed by the silicothermic method in a manner which is a substantial improvement over prior art processes. Magnesium oxide, calcium oxide and silicon are reacted in a heated flowing inert gas stream, for example, hydrogen, argon or helium, which maintains the reaction temperature and removes gaseous magnesium from the reaction zone. Magnesium is recovered from the inert gas stream in liquid or solid form by cooling. Heat recovery is effected to preserve thermal efficiency and the inert gas stream is recycled to the reaction zone. Continuous production of magnesium can be effected.

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