Method for the thermal refinement of greatly contaminated copper in molten phase
AssigneeKlockner-Humboldt-Deutz Aktiengesellschaft
InventorsAlfred Kryczun, Gerhard Melcher
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Abstract
Method and apparatus for the thermal refinement of contaminated copper in the molten phase wherein superimposed molten phases are formed in a treating vessel, the lower being the copper bearing material and the upper phase containing slag, and reactive gases are simultaneously injected into each of the molten phases.
Claims6
In a method for the thermal refinement of contaminated copper scrap in the molten phase in which superimposed molten phases are formed in a treating vessel, the lower phase containing black copper and the upper phase containing a slag with impurities such as zinc, tin, lead and the like, the improvement which comprises simultaneously injecting a reducing gas into said upper phase from a plurality of spaced parallel points and an oxidizing gas into said lower phase from a plurality of spaced parallel points, said oxidizing gas being introduced at a rate higher than said reducing gas.
Dependencies are inferred from the claim text.