Modern Mining ›› 2024, Vol. 40 ›› Issue (03): 160-162.
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In order to improve the beneficiation index of a copper-lead-zinc polymetallic ore in Yun⁃ nan，reduce the cost of beneficiation reagents and improve economic benefits，based on the study of ore properties，an experimental study on copper-lead mixed flotation process was carried out.The results show that under the conditions of collector butyl xanthate + Z-200 dosage of（50 + 30）g/t，zinc inhibitor zinc sul⁃ fate + sodium sulfite dosage of（600 + 300）g/t，foaming agent BK204 dosage of 30 g/t，primary grinding fineness of -0.074 mm 80%，and coarse concentrate regrinding fineness of -0.032 mm 90%，the copper-lead mixed flotation process of one roughing-two scavenging-one roughing concentrate regrinding-two cleaning is carried out. The copper-lead mixed concentrate with copper grade of 12.06%，lead grade of 18.85%，zinc grade of 6.14%，copper recovery of 87.98%，lead recovery of 85.33% and zinc recovery of 4.22% can be obtained.
