Recovery of aluminium scrap

Details Recovery of aluminium scrap Recovery of aluminium scrap

C - Chemistry, Metallurgy

22

B

53/235

C22B 7/00 (2006.01) C22B 21/00 (2006.01)

Patent

CA 1220347

A B S T R A C T In a process for recovery of aluminium metal from coated light gauge aluminium scrap the scrap fragments are first decoated and then fed substantially continuously onto the surface of a body of molten metal above a channel-type induction heater. The molten metal is stirred to produce strong down flows at the molten metal surface to submerge the decoated scrap particles. The submergence may be effected by a coreless induction heater acting on the body of molten metal or other electromagnetic device such as one or more linear induction motors which are employed to set up a strong axial down flow at the centre of the metal surface or to generate a vortex at that location.

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