东北大学学报:自然科学版 ›› 2020, Vol. 41 ›› Issue (7): 1008-1014.DOI: 10.12068/j.issn.1005-3026.2020.07.015

• 资源与土木工程 • 上一篇    下一篇

乙二胺磷酸钠对赤铜矿硫化浮选的影响及其机理

马英强1,2,3, 郑双林1, 盛秋月4, 姚金4   

  1. (1.福州大学 紫金矿业学院, 福建 福州350108; 2.矿物加工科学与技术国家重点实验室, 北京102628;3.低品位难处理黄金资源综合利用国家重点实验室, 福建 上杭364200; 4.东北大学 资源与土木工程学院, 辽宁 沈阳110819)
  • 收稿日期:2019-11-20 修回日期:2019-11-20 出版日期:2020-07-15 发布日期:2020-07-15
  • 通讯作者: 马英强
  • 作者简介:马英强(1983-),男,河北衡水人,福州大学副教授.
  • 基金资助:
    国家自然科学基金资助项目(51804081); 矿物加工科学与技术国家重点实验室开放研究基金资助项目(BGRIMM-KJSKL-2017-14); 福建省自然科学基金资助项目(2019J01253).

Effect of Sodium Ethylenediamine Phosphate on Sulfurized Flotation of Cuprite and Its Mechanism

MA Ying-qiang1,2,3, ZHENG Shuang-lin1, SHENG Qiu-yue4, YAO Jin4   

  1. 1. School of Zijin Mining, Fuzhou University, Fuzhou 350108, China; 2. State Key Laboratory of Mineral Processing, Beijing 102628, China; 3. State Key Laboratory of Comprehensive Utilization of Low-Grade Refractory Gold Ores, Shanghang 364200, China; 4. School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China.
  • Received:2019-11-20 Revised:2019-11-20 Online:2020-07-15 Published:2020-07-15
  • Contact: MA Ying-qiang
  • About author:-
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摘要: 通过单矿物浮选实验,考察了乙二胺磷酸钠对赤铜矿硫化浮选的影响.采用矿物表面X射线光电子能谱分析、矿物表面Zeta电位检测、药剂在矿物表面吸附能分析和矿物表面捕收剂吸附量测试等方法,探讨了乙二胺磷酸钠对赤铜矿硫化浮选的影响机理.结果表明:乙二胺磷酸钠能够使硫化后的赤铜矿矿物表面铜、硫元素的含量增加,负电性增强,使HS-在矿物表面的吸附能负值增加,硫化反应更易发生,进而改善了矿物表面的硫化效果,增加了矿物表面捕收剂的吸附量,提高了赤铜矿硫化浮选的回收率.

关键词: 赤铜矿, 硫化浮选, 乙二胺磷酸钠, 浮选机理, 表面吸附

Abstract: The effect of sodium ethylenediamine phosphate on sulfide flotation of cuprite was investigated by single mineral flotation tests. The influence mechanism of sodium ethylenediamine phosphate for sulfide flotation of cuprite was studied by means of X-ray photoelectron spectroscopy, Zeta potential, adsorption energy of reagents on mineral surface and adsorption capacity of collector. The results showed that the sodium ethylenediamine phosphate can increase the content of copper and sulfur elements on the surface of the sulphide cuprite mineral, increase the negative value of the adsorption energy of HS- on the surface of the mineral, and make the sulphide reaction easier occur, thus improving the sulphide effect on the surface of the mineral, increasing the adsorption capacity of the mineral surface collector, and improving the recovery rate of sulphide flotation.

Key words: cuprite, sulfurized flotation, sodium ethylenediamine phosphate, flotation mechanism, surface adsorption

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