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黄金科学技术 ›› 2017, Vol. 25 ›› Issue (2): 89-95.doi: 10.11872/j.issn.1005-2518.2017.02.089

• 采选技术与矿山管理 • 上一篇    下一篇

低品位氧化铅锌矿物的浮选回收试验研究

吕翠翠1,2,王永良1,肖力1,2,钱鹏1,叶树峰1*   

  1. 1.中国科学院过程工程研究所,北京   100190;
    2.中国科学院大学,北京   100049
  • 收稿日期:2016-06-13 修回日期:2016-12-21 出版日期:2017-04-28 发布日期:2017-05-12
  • 通讯作者: 叶树峰(1966-),男,江西余干人,研究员,从事冶金反应工程研究工作。sfye@ipe.ac.cn
  • 作者简介:吕翠翠(1987-),女,安徽界首人,博士研究生,从事资源综合利用研究工作。cclv@ipe.ac.cn
  • 基金资助:

    国家高技术研究发展计划(“863”计划)“氰化渣硫铁金梯级分离富集与无害化技术”(编号:2011AA06A104)和十二五国家科技支撑计划“金矿短流程磨浮工艺研究及示范”(编号:2012BAB08B04)联合资助

Experimental Research on Recovering Low Grade Oxidized Lead-Zinc Ore by Flotation

LV Cuicui1,2,WANG Yongliang1,XIAO Li1,2,QIAN Peng1,YE Shufeng1   

  1. 1.Institute of Process Engineering,Chinese Academy of Sciences,Beijing   100190,China;
    2.University of Chinese Academy of Sciences,Beijing   100049,China;
  • Received:2016-06-13 Revised:2016-12-21 Online:2017-04-28 Published:2017-05-12

摘要:

针对山东某低品位铅锌矿,通过X射线衍射分析(XRD)和扫描电镜分析(SEM)确定铅矿物主要以白铅矿的形式存在,锌矿物主要以钙锌白云石、菱锌矿和硅锌矿的形式存在。通过试验研究了磨矿细度对铅锌回收率的影响,确定最佳磨矿细度为-0.074 mm占84%,然后添加Na2S对铅锌矿物进行硫化处理,在不添加锌抑制剂的情况下直接用丁基黄药和乙硫氮对铅矿物进行捕收,铅品位从原矿中的0.88%提高至57.11%,铅回收率达到61.17%。选铅尾矿用CuSO4对锌进行活化,然后用丁基黄药对锌矿物进行捕收,得到锌回收率为31.45%、锌品位为35.24%的锌精矿,使铅锌得到较好分离。试验结果表明,硫化作用对解离的氧化铅矿物活化作用较大,在最佳磨矿细度下,能够获得较好的回收率。

关键词: 低品位铅锌矿, 铅锌分离, 浮选, 硫化钠

Abstract:

A low grade lead-zinc ore in Shandong Province was examined by XRD and SEM,the results showed that lead mineral exist mainly as cerusite and zinc minerals exist mainly as dolomite,smithsonite and willemite.The effect of grinding fineness on the recovery of lead and zinc was studied.At the optimal grinding fineness of 84%(-0.074 mm),the lead-zinc ore was treated by sodium sulfide,followed by butyl xanthate and ethyl dithio carbamate as combined collectors and terpenic oil as frother.As a result that the lead concentrate with recovery rate of 61.17% and grade of 57.11% was obtained.The lead tailing was treated with copper sulfate to activate zinc ore,followed by butyl xanthate as collector and terpenic oil as frother,the result showed that the zinc concentrate with recovery rate of 31.45% and grade of 35.24% was obtained,achieving a satisfactory separation result.Experimental results show that the effect of vulcanization is larger on the activation of dissociation lead oxide minerals,and a good recovery rate can be obtained under the condition of the best grinding fineness.

Key words:  low grade lead-zinc ore, lead-zinc separation, flotation, sodium sulfide

中图分类号: 

  • TD923
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