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Recovering tin from hardhead by selective oxidation of iron
Recovery of zinc from dross and tin from hardhead by amalgam electrolysis,
Recovery of tin from hardhead by filtration
Recovery of zinc from galvanizers' dross and zinc-base die-cast scrap by filtration
Refining iron-contaminated zinc by filtration and centrifugation
Recovery of lead and copper from blast furnace matte
Composition and characteristics of municipal incinerator residues