C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 7/00 (2006.01) C21B 13/00 (2006.01) C22B 5/12 (2006.01) C22B 7/04 (2006.01) C22B 9/05 (2006.01) C22B 19/30 (2006.01)
Patent
CA 2274188
The invention relates to a process for pyrometallurgical processing, in a furnace chamber, of metal-containing waste which may also contain a quantity of organic material, which involves a reducing gas being blown with high velocity onto the surface of the smelt in which the metal oxides axe present in the molten state, the reducing gas being made by incomplete combustion of a fuel and/or the organic material and an oxygen-containing gas, and is characterized in that, in addition, steam and/or an oxygen-rich gas such as almost pure oxygen are injected, roughly parallel to the surface of the smelt, into the oven chamber above said surface, and in that the total amount of oxygen used in the furnace chamber is lower than the amount required stoichiometrically for complete combustion of the organic material together with the fuel.
Jungk Klaus
Lotens Jan Pieter
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Droan B.v.
Gibros Pec B.v.
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