Production of magnesium metal

Details Production of magnesium metal Production of magnesium metal

1983-12-20

1985-05-21

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

C22B 2622

Patent

active

045184259

ABSTRACT:
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.

REFERENCES:
patent: 3427152 (1969-02-01), Eisenberg et al.
patent: 4389247 (1983-06-01), Won et al.

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