Flotation of a high-sulfur copper-lead-zinc sulfide ore in Tibet

One copper-lead-zinc-sulphur polymetallic sulfide deposit in Tibet was finely and complexly disseminated,which contains high sulphur.Flowsheet of copper-lead bulk flotation-separation of copper-lead then flotation of zinc with inhibition of sulphur was adopted.Grade of copper,lead and zinc concentrates were 28.22%,57.49% and 44.17% respectively.Recovery of them were 85.29%,85.61% and 62.96% separately.Silver was collected in copper and lead concentrates with a recovery of 89.7%.Comprehensive recovery of this polymetallic sulfide ore was completed well.