Process for the extraction of non-ferrous metals from slags...

Details Process for the extraction of non-ferrous metals from slags... Process for the extraction of non-ferrous metals from slags...

C - Chemistry, Metallurgy

22

B

53/361

C22B 7/04 (2006.01)

Patent

CA 1102141

Process for the extraction of non-ferrous metals from slags and other metallurgical by-products ABSTRACT OF THE DISCLOSURE Non-ferrous metals are extracted from slags (9) by treating the latter in the molten state in an electric furnace with submerged electrodes (2) under a layer of a solid reducing agent (8), while injecting a non oxidizing gas into the molten material at a flow rate of between 0,5 and 10 Nm3/h/ton of material treated (figure 1).

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