小寺沟低品位微细粒级铜矿高效分离技术研究
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摘要
针对小寺沟蛇纹石-滑石型低品位微细粒级铜矿脉石含量高、黄铜矿与黄铁矿紧密共生、嵌布粒度极细等问题,通过自主研发易浮脉石抑制剂CD-2,配合使用Z-200+CF-1组合药剂,确定原矿-磨矿-两段粗选-粗精矿再磨-两段精粗选-抛尾的工艺流程,当原矿含铜0.57%时,获得铜精矿1含铜23.65%、回收率为68.66%,铜精矿2含铜3.06%、铜回收率5.10%,总铜精矿含铜16.13%、铜总回收率为73.76%的良好选别指标。
In view of the problems in Xiaosigou serpentine-talc type low-grade fine grained copper deposit,such as high content of serpentine,close symbiosis between chalcopyrite and pyrite,and extremely fine distribution of grain size,the process,including original ore,grinding,two-stage roughing,coarse concentrate regrinding,two-stage fine roughing,and tailings discharging was determined by using independently researched and developed CD-2 as easy-floating gangue inhibitor,combined with Z-200+CF-1 reagent.When the copper content in the raw ore was 0.57%,good selection indexes were achieved,including the copper concentrate 1 with copper content of 23.65% and recovery rate of 68.66%,and the copper concentrate 2 with copper content of 3.06%and recovery rate of 5.10%,as well as the total copper concentrate with copper content of 16.13%and recovery rate of 73.76%.
In view of the problems in Xiaosigou serpentine-talc type low-grade fine grained copper deposit,such as high content of serpentine,close symbiosis between chalcopyrite and pyrite,and extremely fine distribution of grain size,the process,including original ore,grinding,two-stage roughing,coarse concentrate regrinding,two-stage fine roughing,and tailings discharging was determined by using independently researched and developed CD-2 as easy-floating gangue inhibitor,combined with Z-200+CF-1 reagent.When the copper content in the raw ore was 0.57%,good selection indexes were achieved,including the copper concentrate 1 with copper content of 23.65% and recovery rate of 68.66%,and the copper concentrate 2 with copper content of 3.06%and recovery rate of 5.10%,as well as the total copper concentrate with copper content of 16.13%and recovery rate of 73.76%.
引文
[1]唐敏,张文彬.在微细粒铜镍硫化矿浮选中蛇纹石类脉石矿物浮选行为研究[J].中国矿业,2008,17(2):47-58.
[2]李桂金,赵平,白志民.蛇纹石表面特性[J].硅酸盐学报,2017,45(8):1204-1208.
[3]FENG BO,LU Yiping,FENG Qiming,et al.Mechanisms of surface charge development of serpentine mineral[J].Transactions of Nonferrous Metals Society of China,2013(23):1123-1128.
[4]卢毅屏,张明洋,冯其明,等.蛇纹石与滑石的同步抑制原理[J].中国有色金属学报,2012,22(2):560-565.
[5]金鸣.我国低品位铜矿石选矿技术的进展[J].矿业快报,2008(11):5-8.
[6]彭会清,徐林.某难选硫化铜矿石选矿工艺流程研究[J].矿业研究与开发,2006,26(4):36-38.
[7]曹慧昌.我国铜矿石选矿技术研究新进展[J].有色矿冶,2011,27(6):26-28.
[8]孙大勇,祁忠旭,董宗良,等.承德某难选铜矿250t/d选矿工业试验研究[J].矿业研究与开发,2018,38(9):63-66.
[9]方明山,王玲,肖仪武.安徽某铜矿影响铜选矿指标的矿物学因素研究[J].有色金属(选矿部分),2014(2):1-8.
[2]李桂金,赵平,白志民.蛇纹石表面特性[J].硅酸盐学报,2017,45(8):1204-1208.
[3]FENG BO,LU Yiping,FENG Qiming,et al.Mechanisms of surface charge development of serpentine mineral[J].Transactions of Nonferrous Metals Society of China,2013(23):1123-1128.
[4]卢毅屏,张明洋,冯其明,等.蛇纹石与滑石的同步抑制原理[J].中国有色金属学报,2012,22(2):560-565.
[5]金鸣.我国低品位铜矿石选矿技术的进展[J].矿业快报,2008(11):5-8.
[6]彭会清,徐林.某难选硫化铜矿石选矿工艺流程研究[J].矿业研究与开发,2006,26(4):36-38.
[7]曹慧昌.我国铜矿石选矿技术研究新进展[J].有色矿冶,2011,27(6):26-28.
[8]孙大勇,祁忠旭,董宗良,等.承德某难选铜矿250t/d选矿工业试验研究[J].矿业研究与开发,2018,38(9):63-66.
[9]方明山,王玲,肖仪武.安徽某铜矿影响铜选矿指标的矿物学因素研究[J].有色金属(选矿部分),2014(2):1-8.