Patent ID: 6770115
Filing Date: 2004-08-03
Classification: C22B,Y02P

Abstract:
A method of reclaiming magnesium from post consumer scrap and/or secondary magnesium turnings comprising:a) continuously feeding said post consumer scrap and/or secondary magnesium turnings into a rotary tray dryer, said post consumer scrap and/or secondary magnesium turnings including magnesium and a liquid, said liquid including water, hydrocarbon compound, or mixtures thereof; b) operating said rotary tray dryer so as to provide an internal temperature of at least about 250Â° F., a substantially non-combustive internal atmosphere, and a residence time of at least about 0.5 hour for said post consumer scrap and/or secondary magnesium turnings; and, c) at least partially removing said liquid from said post consumer scrap and/or secondary magnesium turnings.