Magnesium refining process

Details Magnesium refining process Magnesium refining process

1985-10-11

1987-09-22

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 67R, 75 93AB, C22B 2622

Patent

active

046953205

ABSTRACT:
Disclosed is a process for refining magnesium crude containing between about 0.7 and 1.5 wt. % calcium. The process includes mixing a flux containing from about 55 to 85 wt. % magnesium chloride and 45 to 15 wt. % alkali chlorides into a molten body of the crude. Refined magnesium is thereby produced, as well as a sludge containing calcium chloride which never has a liquidus exceeding the temperature of the molten body. The refined magnesium is then separated from the sludge.

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Lawrence H. Van Vlack, Elements of Materials Science and Engineering (fourth edition), 1980, p. 532, Appendix D.
Kenneth A. Bowman, Magnesium by the Magnetherm Process--Process Contamination and Fused Salt Refining, Light Metals 1986, vol. 2, pp. 1033-1038.
Jean-Marie Logerot and Andre Michel Mena, Extractive Metallurgy--Latest Developments of the Magnetherm Process, as presented at the 109th AIME Annual Meeting--Las Vegas, Nevada--Feb. 24-28, 1980, pp. 1-31.

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