C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 7/00 (2006.01) C22B 1/00 (2006.01) C23G 5/00 (2006.01) F27B 7/04 (2006.01) F27B 7/18 (2006.01)
Patent
CA 2072512
ABSTRACT The method for the treatment of waste products, in particular oil-contaminated chips of reactive metals such as magnesium and magnesium alloys. The chips are heated to a temperature close to or above the boiling point of the oil and below the melting point of the metal. Preferably, a closed, cylindrical rotating furnace (1) should be used, having inner, slanting blades/wings (9) on the wall of the furnace. Chips are fed from a container (6) via a transporting device (8). There is a closed outlet system (12) to conduct the chips out of the furnace. The oil vapour is conducted out of the furnace and coalesced.
Fetherstonhaugh & Co.
Norsk Hydro A.s.
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