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Volume 24 Issue 7
Jul.  2017
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文章导航 >  矿物冶金与材料学报（英文）  > 2017  >  24(7): 736-744
Dong Li, Wan-zhong Yin, Ji-wei Xue, Jin Yao, Ya-feng Fu, and Qi Liu, Solution chemistry of carbonate minerals and its effects on the flotation of hematite with sodium oleate, Int. J. Miner. Metall. Mater., 24(2017), No. 7, pp. 736-744. https://doi.org/10.1007/s12613-017-1457-7
Cite this article as:
Dong Li, Wan-zhong Yin, Ji-wei Xue, Jin Yao, Ya-feng Fu, and Qi Liu, Solution chemistry of carbonate minerals and its effects on the flotation of hematite with sodium oleate, Int. J. Miner. Metall. Mater., 24(2017), No. 7, pp. 736-744. https://doi.org/10.1007/s12613-017-1457-7
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研究论文

Solution chemistry of carbonate minerals and its effects on the flotation of hematite with sodium oleate

  • School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China

  • College of Zijin Mining, Fuzhou University, Fuzhou 350116, China

  • Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada

  • 通讯作者:

    Wan-zhong Yin    E-mail: yinwanzhong@mail.neu.edu.cn

    Qi Liu    E-mail: qi.liu@ualberta.ca

  • The effects of carbonate minerals (dolomite and siderite) on the flotation of hematite using sodium oleate as a collector were investigated through flotation tests, supplemented by dissolution measurements, solution chemistry calculations, zeta-potential measurements, Fourier transform infrared (FTIR) spectroscopic studies, and X-ray photoelectron spectroscopy (XPS) analyses. The results of flotation tests show that the presence of siderite or dolomite reduced the recovery of hematite and that the inhibiting effects of dolomite were stronger. Dissolution measurements, solution chemistry calculations, and flotation tests confirmed that both the cations (Ca2+ and Mg2+) and CO32- ions dissolved from dolomite depressed hematite flotation, whereas only the CO32- ions dissolved from siderite were responsible for hematite depression. The zeta-potential, FTIR spectroscopic, and XPS analyses indicated that Ca2+, Mg2+, and CO32- (HCO3-) could adsorb onto the hematite surface, thereby hindering the adsorption of sodium oleate, which was the main reason for the inhibiting effects of carbonate minerals on hematite flotation.
    • Research Article

    Solution chemistry of carbonate minerals and its effects on the flotation of hematite with sodium oleate

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      Abstract
    • The effects of carbonate minerals (dolomite and siderite) on the flotation of hematite using sodium oleate as a collector were investigated through flotation tests, supplemented by dissolution measurements, solution chemistry calculations, zeta-potential measurements, Fourier transform infrared (FTIR) spectroscopic studies, and X-ray photoelectron spectroscopy (XPS) analyses. The results of flotation tests show that the presence of siderite or dolomite reduced the recovery of hematite and that the inhibiting effects of dolomite were stronger. Dissolution measurements, solution chemistry calculations, and flotation tests confirmed that both the cations (Ca2+ and Mg2+) and CO32- ions dissolved from dolomite depressed hematite flotation, whereas only the CO32- ions dissolved from siderite were responsible for hematite depression. The zeta-potential, FTIR spectroscopic, and XPS analyses indicated that Ca2+, Mg2+, and CO32- (HCO3-) could adsorb onto the hematite surface, thereby hindering the adsorption of sodium oleate, which was the main reason for the inhibiting effects of carbonate minerals on hematite flotation.
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