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Volume 26 Issue 9
Sep.  2019
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文章导航 >  矿物冶金与材料学报（英文）  > 2019  >  26(9): 1059-1068
Yan-ping Niu, Chuan-yao Sun, Wan-zhong Yin, Xing-rong Zhang, Hong-feng Xu, and Xu Zhang, Selective flotation separation of andalusite and quartz and its mechanism, Int. J. Miner. Metall. Mater., 26(2019), No. 9, pp. 1059-1068. https://doi.org/10.1007/s12613-019-1842-5
Cite this article as:
Yan-ping Niu, Chuan-yao Sun, Wan-zhong Yin, Xing-rong Zhang, Hong-feng Xu, and Xu Zhang, Selective flotation separation of andalusite and quartz and its mechanism, Int. J. Miner. Metall. Mater., 26(2019), No. 9, pp. 1059-1068. https://doi.org/10.1007/s12613-019-1842-5
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研究论文

Selective flotation separation of andalusite and quartz and its mechanism

  • College of Resources and Civil Engineering, Northeastern University, Shenyang 110000, China

  • State Key Laboratory of Mineral Processing, BGRIMM Technology Group, Beijing 100160, China

  • The Research Center of Experimental Testing for Geology and Minerals in Heilongjiang Province, Harbin 150000, China

  • Heilongjiang Mining Group Co. Ltd., Harbin 150000, China

  • 通讯作者:

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

  • The separation of andalusite and quartz was investigated in the sodium oleate flotation system, and its mechanism was studied by solution chemical calculation, zeta-potential tests, Fourier transform infrared spectroscopic (FTIR), and X-ray photoelectron spectroscopic (XPS). The flotation tests results show that FeCl3·6H2O has a strong activation effect on andalusite and quartz and citric acid has a strong inhibitory effect on activated quartz, thus increasing the floatability difference between quartz and andalusite when the pulp pH is approximately 8. The FTIR, Zeta potential, and XPS analyses combined with the chemical calculation of flotation reagent solutions demonstrate that Fe forms hydroxide precipitates on the surface of andalusite and quartz and that oleate anions and metal ions adsorb onto the surface of the minerals. The elements Al and Fe can be chemically reacted. The anions in citric acid have different degrees of dissolution of Fe on the andalusite and quartz surfaces, thereby selectively eliminating the activation of the elemental Fe on andalusite and quartz and increasing the floatability of andalusite, leading to a better separation effect between andalusite and quartz.
    • Research Article

    Selective flotation separation of andalusite and quartz and its mechanism

    + Author Affiliations
      Abstract
    • The separation of andalusite and quartz was investigated in the sodium oleate flotation system, and its mechanism was studied by solution chemical calculation, zeta-potential tests, Fourier transform infrared spectroscopic (FTIR), and X-ray photoelectron spectroscopic (XPS). The flotation tests results show that FeCl3·6H2O has a strong activation effect on andalusite and quartz and citric acid has a strong inhibitory effect on activated quartz, thus increasing the floatability difference between quartz and andalusite when the pulp pH is approximately 8. The FTIR, Zeta potential, and XPS analyses combined with the chemical calculation of flotation reagent solutions demonstrate that Fe forms hydroxide precipitates on the surface of andalusite and quartz and that oleate anions and metal ions adsorb onto the surface of the minerals. The elements Al and Fe can be chemically reacted. The anions in citric acid have different degrees of dissolution of Fe on the andalusite and quartz surfaces, thereby selectively eliminating the activation of the elemental Fe on andalusite and quartz and increasing the floatability of andalusite, leading to a better separation effect between andalusite and quartz.
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      • References(15)
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