Modern Mining ›› 2024, Vol. 40 ›› Issue (06): 116-.
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A copper-lead-zinc polymetallic sulfide ore in Anhui Province is a complex refractory
polymetallic sulfide ore. The dissemination relationship of copper-lead-zinc minerals is complex，the miner⁃
als are densely symbiotic，the particle size is extremely uneven，and the comprehensive recovery is difficult.
In order to improve the overall comprehensive utilization rate of resources，according to the properties of the
ore，Z-200 was used as copper collector，25# aerofloat was used as lead collector，butyl xanthate was used
as zinc-sulfur collector，and copper-lead-zinc-sulfur preferential flotation process was adopted. Under the
condition of 0.58% copper，0.57% lead，2.50% zinc and 5.39% sulfur in the raw ore，the copper concen⁃
trate with Cu grade of 18.83% and recovery of 76.33%，the lead concentrate with Pb grade of 45.83% and re⁃
covery of 68.58%，the zinc concentrate with Zn grade of 50.25% and recovery of 87.44%，and sulfur concen⁃
trate with S content of 40.89% and recovery rate of 44.64% were obtained by the laboratory experiment.The
results could provide guidance for the next industrial production.
