Magnesium production

Details Magnesium production Magnesium production

1984-10-03

1985-09-24

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 24, 75 67R, C22B 2622

Patent

active

045431221

ABSTRACT:
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 vaporized. The reductant includes an alkaline earth metal in non-oxidic form, preferably calcium carbide. The vaporized magnesium is delivered to a condenser where it is condensed directly from the vapor state to a powder form.

REFERENCES:
patent: 4190434 (1980-02-01), Bonfils et al.

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