Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1979-06-25
1980-12-09
Andrews, M. J.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 67R, C22B 4500
Patent
active
042382238
ABSTRACT:
A process for extracting magnesium from compounds containing magnesium oxides is disclosed. The process is carried out at lower temperatures and pressures than previous processes which does not melt the dross. The process comprises the steps of mixing magnesium oxide and calcium oxide with aluminum, compressing the mixture, heating the compressed mixture uniformally to a temperature in the range of 800.degree.-1100.degree. C. under controlled pressure to vaporize the magnesium, and condensing the vaporized magnesium on a cooled surface.
REFERENCES:
patent: 1379886 (1921-05-01), Waldo
patent: 3343921 (1967-09-01), Braur
Bettanini Carlo
Enrici Margherita
Zanier Stelio
Andrews M. J.
Societa Italiana per Il Magnesio E Leghe Di Magnesio S.p.A.
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