The invention provides a mixed treatment technology of
copper and lead
anode slime. The mixed treatment technology comprises the technical steps that crude
selenium and calcine are obtained after
copper anode slime is subjected to sulfatizing
roasting, a
selenium dioxide product is obtained after crude
selenium is subjected to oxidation, calcine is rinsed, and
copper is removed; decoppering slagsare mixed with lead
anode slime after being dried, a mixture of the decopper slags and lead anode slime is subjected to reduction
smelting through a
bullion lead furnace,
soot, slags and primary
bullion lead are obtained, and
antimony is recycled from
soot and the slags; primary
bullion lead enters an
antimony removing furnace,
antimony is removed, antimony
soot and secondary bullion lead are obtained, antimony is recycled from antimony soot, and secondary bullion lead is subjected to oxidation refining through a silver-
smelting furnace;
bismuth slags,
tellurium slags, soot and a silver anodeplate are obtained through oxidation refining of the silver-
smelting furnace,
bismuth is recycled from the
bismuth slags,
tellurium is recycled from the
tellurium slags, soot returns to a
pyrometallurgy system to be treated, and the silver anode plate is subjected to silver
electrolysis; and silver
powder and black gold dust are generated through silver
electrolysis, gold is recycled from black gold dust, silver
powder is molten, and silver ingots are generated through pouring. According to the technology, mixed treatment of copper and lead anode slime and comprehensive
recovery of various valuable metals like gold, silver, copper, lead, selenium, antimony, bismuth, tellurium are mainly achieved, and the problem that the quantity of
wastewater generated in a traditional
copper anode slimetreatment technology is effectively solved.