METHOD AND FURNACE FOR REFINING OF MAGNESIUM

摘要

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.