四川绵阳某氧化铅锌矿浮选工艺研究
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摘要
对四川绵阳某氧化铅锌矿进行了浮选工艺研究。采用先硫后氧、先铅后锌的选别方案,经两粗一精一扫选铅、三粗两精一扫选锌,在磨矿细度-0.074 mm粒级占90%条件下,得到了产率12.77%、铅品位66.10%、铅回收率88.23%、含锌2.87%、锌回收率3.18%的铅精矿和产率18.76%、锌品位45.32%、锌回收率73.81%、含铅1.62%、铅回收率3.18%的锌精矿,全流程铅金属总回收率91.41%、锌金属总回收率76.99%。
Flotation technology for an oxidized lead-zinc ore from Mianyang City of Sichuan Province was studied. A selective flotation,namely,recovering oxidized minerals after sulfide minerals and recovering zinc minerals after lead minerals,was adopted. A closed-circuit process consisting of two stages of roughing,one stage of cleaning and one stage of scavenging was used to collect lead minerals,and an open-circuit process consisting of three stages of roughing,two stages of cleaning and one stage of scavenging was used to collect zinc minerals,with a grinding fineness of-0.074 mm90%,which produced a lead concentrate approaching 66.10% Pb grade at 88.23% recovery and Zn content of 2.87% at3.18% Zn recovery,with a yield of 12.77%,as well as a zinc concentrate approaching 45. 32% Zn grade at 73. 81%recovery,1.62% Pb grade at 3.18% recovery,with a yield of 18.76%. It is shown that the whole process resulted in the total lead recovery at 91.41%,and the total zinc recovery at 76.99%.
Flotation technology for an oxidized lead-zinc ore from Mianyang City of Sichuan Province was studied. A selective flotation,namely,recovering oxidized minerals after sulfide minerals and recovering zinc minerals after lead minerals,was adopted. A closed-circuit process consisting of two stages of roughing,one stage of cleaning and one stage of scavenging was used to collect lead minerals,and an open-circuit process consisting of three stages of roughing,two stages of cleaning and one stage of scavenging was used to collect zinc minerals,with a grinding fineness of-0.074 mm90%,which produced a lead concentrate approaching 66.10% Pb grade at 88.23% recovery and Zn content of 2.87% at3.18% Zn recovery,with a yield of 12.77%,as well as a zinc concentrate approaching 45. 32% Zn grade at 73. 81%recovery,1.62% Pb grade at 3.18% recovery,with a yield of 18.76%. It is shown that the whole process resulted in the total lead recovery at 91.41%,and the total zinc recovery at 76.99%.
引文
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[2]刘晓,张宇,王楠,等.我国铅锌矿资源现状及其发展对策研究[J].中国矿业,2015(s1):6-9.
[3]陈军,卫亚儒,胡聪,等.氧化铅锌矿选矿现状及最新进展[J].中国矿山工程,2015(2):19-23.
[4]武鲁庆,章晓林,李康康,等.我国氧化铅锌矿的选矿工艺概述[J].矿产综合利用,2016(5):19-22.
[5]王林祥,孙敬锋.内蒙古某地铅锌选矿试验研究[J].矿产保护与利用,2006,10(5):27-30.
[6]刘军.氧化铅锌矿的浮选[J].矿业快报,2006(10):26-29.
[7]路良山,朱仁峰.新疆某难选氧化铜矿浮选试验研究[J].中国矿业,2013(6):93-96.
[8]李来顺,刘三军,朱海玲,等.云南某氧化铅锌矿试验研究[J].矿冶工程,2013,33(3):69-73.
[9]袁华玮,刘全军,张辉,等.广西某含银难选铅锌矿石选矿试验[J].金属矿山,2015,44(11):91-94.
[10]孙运礼,李国栋.甘肃某富银难选铅锌矿选矿试验[J].金属矿山,2012(9):65-68.
[11]付和生,李剑铭.四川某铅锌矿选矿试验研究[J].有色金属(选矿部分),2008(5):14-15.
[12]秦永启,张文华.某铅锌矿选矿工艺试验研究[J].湿法冶金,2004,6(2):98-100.