Patents Assigned to Societa Italiana per Il Magnesio E Leghe Di Magnesio S.p.A.
  • Method of extracting magnesium from magnesium oxides
    Patent number: 4238223
    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.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: December 9, 1980
    Assignee: Societa Italiana per Il Magnesio E Leghe Di Magnesio S.p.A.
    Inventors: Carlo Bettanini, Stelio Zanier, Margherita Enrici