Abstract: In light of the features of an Anhui Polymetallic complex copper-lead-zinc sulfide ore, it was determined through a systematic test research to adopt a technological flowsheet consisting of bulk flotation of copper and lead with zinc sulfate and sodium sulfite combined inhibitor for zinc mineral to separate out copper-lead-sulfur bulk concentrate, zinc flotation of the bulk flotation tailing and copper-lead separation with potassium dichromate as the inhibitor. As a result, a comprehensive recovery of lead, zinc, copper, gold and silver was realized with advanced metallurgical performances, laying a technical basis for the deposit exploitation and a scientific basis for the enterprise's decision-making.

Key words: Polymetallic ore, Copper-lead-zinc-gold-silver, Comprehensive recovery