electrowinning and smelting module azerbaijan
electrowinning 0.2 (0.008 %) Roast/blast furnace smelting (replaced in Canada & Europe) 50 (2 %) Roast/blast furnace smelting (not in use any more) 100 (4 %) The feed material for producing cadmium consists of residues from the electrolytic production of zinc, and of fume and dust, collected in baghouses from emissions during roasting [5].