东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (4): 557-561.DOI: 10.12068/j.issn.1005-3026.2017.04.021

• 资源与土木工程 • 上一篇    下一篇

菱铁矿和白云石对石英浮选的影响

李东1, 印万忠1,2, 姚金1, 曹少航1   

  1. (1. 东北大学 资源与土木工程学院, 辽宁 沈阳110819; 2. 福州大学 紫金矿业学院, 福建 福州350108)
  • 收稿日期:2015-11-26 修回日期:2015-11-26 出版日期:2017-04-15 发布日期:2017-04-11
  • 通讯作者: 李东
  • 作者简介:李东(1990-),男,河北沧州人,东北大学博士研究生; 印万忠(1970-),男,浙江临安人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51374079); 辽宁省百千万人才工程资助项目(2014921014); 国家自然科学基金青年基金资助项目(51504053); 中国博士后科学基金资助项目(2015M571324).

Effect of Siderite and Dolomite on Flotation of Quartz

LI Dong1, YIN Wan-zhong1,2, YAO Jin1, CAO Shao-hang1   

  1. 1. School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China; 2. College of Zijin Mining, Fuzhou University, Fuzhou 350108, China.
  • Received:2015-11-26 Revised:2015-11-26 Online:2017-04-15 Published:2017-04-11
  • Contact: LI Dong
  • About author:-
  • Supported by:
    -

摘要: 通过浮选试验、吸附量测定和溶液化学计算研究了油酸钠浮选体系下菱铁矿和白云石对石英浮选的影响.浮选试验和吸附量测定结果表明:菱铁矿对石英浮选的影响与其溶解组分有关,当淀粉存在时,菱铁矿可显著影响石英浮选;白云石的溶解组分对石英浮选的影响较小,增大油酸钠用量可在一定程度上消除白云石的影响.溶液化学计算表明,菱铁矿的溶解组分可将活化的石英表面转化为易被淀粉抑制的CaCO3沉淀,而白云石的溶解会受到浮选体系中钙离子的抑制,这也是菱铁矿和白云石溶解对石英浮选的影响存在差异的主要原因.

关键词: 石英, 油酸钠, 菱铁矿, 白云石, 溶液化学

Abstract: Flotation test, adsorption test, and solution chemical calculations were used to investigate the effect of siderite and dolomite on quartz flotation in sodium oleate flotation system. The results of flotation and adsorption tests showed that the effect of siderite on quartz flotation is related to the dissolved siderite species and starch, and siderite significantly influences flotation of quartz in the presence of starch. The negative effect of dolomite on quartz flotation could be whittled by increasing the dosage of sodium oleate. The solution chemical calculations indicated that dissolved siderite species might convert the initial surface of active quartz to CaCO3 precipitates which can be easily depressed by starch, while the dolomite dissolution is restrained by calcium ions in the solution, which might explain the difference of effects on quartz flotation between dissolved siderite species and dissolved dolomite species.

Key words: quartz, sodium oleate, siderite, dolomite, solution chemistry

中图分类号: