关键词: 铜尾矿, 白钨矿, 铜硫分离, 加温精选

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.