C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
39/111, 53/269
C22B 26/22 (2006.01) H05B 3/60 (2006.01)
Patent
CA 1179150
Abstract The invention relates to a method and a furnace for continuous ref?ing of molten magnesium. Raw magnesium is charged into a precipitation chamber in the refining furnace beneath the metal surface as a stream directed to an under-lying salt layer. The precipitated sludge is directed along a sloped bottom in the chamber to an adjacent accumulating chamber. Magnesium rises in the precipi- tation chamber and through openings in partition walls between precipitation chambers the purest magnesium from an upper metal layer is discharged to a lowerlevel in the next chamber in the process direction. The refining furnace com- prises an accumulating chamber for sludge and a plurality of successive precipi-tation chambers divided from each other by vertical walls. The openings in partition walls between precipitation chambers are designed as sloping channels with the inlet at a higher level than the outlet in the following chamber.
392478
Rýnhaug Jan B.
Wallevik Oddmund
Fetherstonhaugh & Co.
Norsk Hydro A.s
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