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Metal Mine ›› 2022, Vol. 51 ›› Issue (05): 135-141.

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Research on Resource Utilization of a Copper Tailing in Hubei

YANG Weiwei1CAI Heng′an1SHANG Shichao1MAO Yilin2,3   

  1. 1.The First Geological Brigade of Hubei Geological Bureau,Daye 435000,China; 2.Institute of Multipurpose Utilization of Mineral Resource,CAGS,Chengdu 610041,China; 3.Research Center of Multipurpose Utilization of Metal Mineral Resources of China Geological Survey,Chengdu 610041,China
  • Online:2022-05-15 Published:2022-05-27

Abstract: In order to realize the resource utilization of a copper tailings in Hubei,a detailed experimental study on comprehensive recovery was carried out.The results showed that:① The copper concentrate with yield of 0.10%,Cu grade of 13.80% and Cu recovery rate of 21.71% and the sulfur concentrate with yield of 1.22%,S grade of 44.50% and S recovery rate of 50.89% could be obtained in closedcircuit test by using coppersulfur mixed flotation and coppersulfur separation flotation process after regrinding of coppersulfur mixed concentrate.② Two roughing,two scavenging and one cleaning were used to treat coppersulfur mixed floating tailings by flotation at room temperature.Next,the room temperature concentrate was concentrated to the concentration of 60%,then heated to 90 ℃,stirred and desorbed for 80 min,followed by one roughing,two scavenging and five cleaning for heating cleaning,middling back in sequence.Finally,the tungsten concentrate with yield of 0.93%,WO3 grade of 15.31% and WO3 recovery rate of 55.07% was obtained.The tungsten concentrate quality was improved by acid leaching.Finally,an acid leaching tungsten concentrate with yield of 0.40%,WO3 grade of 34.19% and WO3 recovery rate of 53.04% was obtained.③ For tungsten roughing tailings,iron concentrate with yield of 3.73%,TFe grade of 60.45% and recovery rate of 15.66% could be obtained by low intensity magnetic separation process.