西藏某复杂铜铅锌多金属硫化矿分选工艺研究
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摘要
针对某铜铅锌多金属硫化矿中有价组分嵌布关系复杂,铜矿物嵌布粒度细,且部分铅矿物可浮性较好的特点,提出铜铅等可浮—铜铅再磨分离—铅锌依次浮选的工艺流程,同时采用铜矿物的高效捕收剂A-22和铅矿物新型抑制剂NY-89,较好的实现了该复杂铜铅锌多金属硫化矿物的综合回收,实验室小型闭路试验获得铜精矿含铜27.52%,铜回收率83.48%,铅精矿含铅66.27%,含银2113.23g/t,铅回收率93.25%,银回收率91.29%,锌精矿含锌46.11%,锌回收率78.21%。
According to the characteristic of a complex polymetallic copper-lead-zinc ore,such as the complex dissemination relations among the valuable components,the fine dissemination size of copper minerals and the good flotability of a part of lead mineral,a process flow-sheet consisting of copper-lead iso-flotation,the regrinding and copper-lead separation and the sequential flotation of lead-zinc was advanced,at the same time,high efficiency collector A-22 of copper mineral and new depressant NY-89 of lead mineral were used,it come to a better realization of comprehensive minerals recovery from complex polymetallic copper-lead-zinc ore.The laboratory test of small closed-circuit test obtained a copper concentrate with a copper content and recovery of 27.52% and 83.48%,a lead concentrate with a lead content and recovery of 66.27% and 93.25% and a silver content and recovery of 2113.23 g/t and 91.29%,and a zinc concentrate with a zinc content and recovery of 46.11% and 78.21%.
According to the characteristic of a complex polymetallic copper-lead-zinc ore,such as the complex dissemination relations among the valuable components,the fine dissemination size of copper minerals and the good flotability of a part of lead mineral,a process flow-sheet consisting of copper-lead iso-flotation,the regrinding and copper-lead separation and the sequential flotation of lead-zinc was advanced,at the same time,high efficiency collector A-22 of copper mineral and new depressant NY-89 of lead mineral were used,it come to a better realization of comprehensive minerals recovery from complex polymetallic copper-lead-zinc ore.The laboratory test of small closed-circuit test obtained a copper concentrate with a copper content and recovery of 27.52% and 83.48%,a lead concentrate with a lead content and recovery of 66.27% and 93.25% and a silver content and recovery of 2113.23 g/t and 91.29%,and a zinc concentrate with a zinc content and recovery of 46.11% and 78.21%.
引文
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[4]董英,王吉坤,冯桂林.常用有色金属资源开发与加工[M].北京:冶金工业出版社,2005:32-36.
[5]戴晶平,刘侦德.铅锌选矿技术[M].长沙:中南大学出版社:2010:73-74.
[6]罗仙平,陈华强,严志明,等.从会理锌矿铅锌矿石中分选铜的试验研究[J].江西理工大学学报,2008,29(5):6-11.
[7]胡保栓.小铁山矿石等可浮选矿新工艺研究[J].甘肃有色金属,1993(2):53-55,60.
[8]刘冬明,万文.无毒抑制剂铜铅分离浮选的研究[J].工程设计与建设,2001,33(3):6-9.