Comprehensive recovery of valuable metals in lead and copper smelting flue dust

Recovery of valuable metals from flue dust of oxygen bottom-blown furnace of copper and lead smelting was studied, two kinds of valuable metal recovery process of flue dust were introduced, mainly including recovery of cadmium, zinc, copper and other metals from leaching solution after flue dust leaching, and recovery of lead, bis- muth and other metals from the leaching residue.