Separation of magnesium from magnesium chloride and zirconium an

Details Separation of magnesium from magnesium chloride and zirconium an Separation of magnesium from magnesium chloride and zirconium an

1990-09-21

1992-03-24

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75618, 75619, C22B 3412, C22B 3414

Patent

active

050984713

ABSTRACT:
Utilization of inherent fractional distillation of magnesium and magnesium chloride in reduction to sponge metal in a vacuum distillation furnace of zirconium and/or hafnium or other refractory metal tetrachloride by the Kroll process, to separate magnesium from magnesium chloride and metal subchlorides so the magnesium can be recycled in the process substantially free of the magnesium chloride and metal subchlorides. The magnesium vapor from the distillation furnace is recovered and condensed separately from the magnesium chloride and refractory metal sub-chloride vapors.

REFERENCES:
patent: 3966460 (1976-06-01), Spink
patent: 4403769 (1983-09-01), Ishizaka
patent: 4668287 (1987-05-01), Kwon
patent: 4749409 (1988-06-01), Ishizaka

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