东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (10): 1478-1481.DOI: 10.12068/j.issn.1005-3026.2014.10.025

• 资源与土木工程 • 上一篇    下一篇

2，3-二羟基丙基二硫代碳酸钠对铜铅硫化矿浮选行为的影响

朴正杰1，魏德洲1，刘智林1,2   

  1. (1. 东北大学 资源与土木工程学院， 辽宁 沈阳110819； 2. 江西理工大学 资源与环境学院， 江西 赣州341000)
  • 收稿日期:2014-04-23 修回日期:2014-04-23 出版日期:2014-10-15 发布日期:2014-05-19
  • 通讯作者: 朴正杰
  • 作者简介:朴正杰(1982-)，男，吉林通化人，东北大学博士研究生；魏德洲(1956-)，男，河南南阳人，东北大学教授，博士生导师.
  • 基金资助:
    国家科技支撑计划项目(2012BAB01B03).

Effect of Sodium 2，3dihydroxypropyl Dithiocarbonate on Floatability of CuPb Sulfide Ores

PIAO Zhengjie1， WEI Dezhou1， LIU Zhilin1,2   

  1. 1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China； 2. Faculty of Resource and Environmental Engineering， Jiangxi University of Science and Technology， Ganzhou 341000， China.
  • Received:2014-04-23 Revised:2014-04-23 Online:2014-10-15 Published:2014-05-19
  • Contact: WEI Dezhou
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摘要： 在乙硫氮浮选体系下，研究了小分子有机抑制剂2，3-二羟基丙基二硫代碳酸钠(SGX)对黄铜矿和方铅矿可浮性的影响，并通过动电位测试和红外光谱分析，探讨了SGX与两种矿物表面的相互作用机理.单矿物浮选试验结果表明:在整个pH值范围内，SGX对黄铜矿的浮选有一定的促进作用，而对方铅矿有强的抑制作用；随着SGX质量浓度的增加，方铅矿的回收率迅速下降，而黄铜矿的回收率有小幅度的增加.人工混合矿浮选试验结果表明，当矿浆pH值为6，SGX质量浓度为19g/L时，可得到较好的分离效果，精矿中铜的质量分数和回收率分别为2966%和8523%.动电位和红外光谱测试分析结果表明SGX与方铅矿之间的吸附能力明显强于黄铜矿.

关键词: 2, 3-二羟基丙基二硫代碳酸钠, 浮选, 黄铜矿, 方铅矿, 抑制

Abstract: Sodium 2， 3dihydroxypropyl dithiocarbonate (SGX)， a small molecule organic depressant， was used to investigate on the selective depression of galena from chalcopyrite in the flotation tests by diethyl dithiocarbamate， and zeta potential and infrared spectrum measurements were performed to study the interaction mechanism between SGX and minerals. The flotation tests of single minerals showed that SGX has slight activation on chalcopyrite and strong depression on galena in the whole pH range. With the increasing of mass concentration of SGX， the recovery of galena decreases rapidly， while that of chalcopyrite has a slight increase. The satisfied separation results of artificially mixed samples showed that the mass fraction and recovery of copper are 2966% and 8523% at 6 of pH value with 19 g/L SGX， respectively. Zeta potential and infrared spectrum measurements indicated that SGX has more strongly adsorption capacity on galena than chalcopyrite.

Key words: sodium 2, 3dihydroxypropyl dithiocarbonate, floatation, chalcopyrite, galena, depress

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