Study on Beneficiation Technology of a Refractory Copper-Lead-Zinc Polymetallic Sulfide Ore in Anhui Province
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.
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