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Volume 25 Issue 11
Nov.  2018
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文章导航 >  矿物冶金与材料学报（英文）  > 2018  >  25(11): 1256-1262
Qian-yu Sun, Wan-zhong Yin, Dong Li, Ya-feng Fu, Ji-wei Xue,  and Jin Yao, Improving the sulfidation-flotation of fine cuprite by hydrophobic flocculation pretreatment, Int. J. Miner. Metall. Mater., 25(2018), No. 11, pp. 1256-1262. https://doi.org/10.1007/s12613-018-1678-4
Cite this article as:
Qian-yu Sun, Wan-zhong Yin, Dong Li, Ya-feng Fu, Ji-wei Xue,  and Jin Yao, Improving the sulfidation-flotation of fine cuprite by hydrophobic flocculation pretreatment, Int. J. Miner. Metall. Mater., 25(2018), No. 11, pp. 1256-1262. https://doi.org/10.1007/s12613-018-1678-4
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研究论文

Improving the sulfidation-flotation of fine cuprite by hydrophobic flocculation pretreatment

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

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

  • 通讯作者:

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

  • Hydrophobic flocculation pretreatment was performed to assess its effect on the recovery of fine cuprite in sulfidation-flotation. The results of the micro-flotation experiment showed that cuprite recovery is related to the particle size, and that an excessive content of fine particles (<18 μm) impacted the recovery of coarse particles. When hydrophobic flocculation pretreatment was used, the recovery of fine cuprite in sulfidation-flotation increased from 60.3% to 86.3% under optimum conditions (pH 9.5; sodium oleate concentration, 2×10-4 mol·L-1; stirring time, 6 min; stirring speed, 1600 r·min-1). The laser particle size analysis and optical microscopy results indicate that hydrophobic flocculation pretreatment effectively reduces the content of fine cuprite, and augments the apparent particle size in the pulp. We performed the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory and extended DLVO theory calculations to further support the interpretation of the results.
    • Research Article

    Improving the sulfidation-flotation of fine cuprite by hydrophobic flocculation pretreatment

    + Author Affiliations
      Abstract
    • Hydrophobic flocculation pretreatment was performed to assess its effect on the recovery of fine cuprite in sulfidation-flotation. The results of the micro-flotation experiment showed that cuprite recovery is related to the particle size, and that an excessive content of fine particles (<18 μm) impacted the recovery of coarse particles. When hydrophobic flocculation pretreatment was used, the recovery of fine cuprite in sulfidation-flotation increased from 60.3% to 86.3% under optimum conditions (pH 9.5; sodium oleate concentration, 2×10-4 mol·L-1; stirring time, 6 min; stirring speed, 1600 r·min-1). The laser particle size analysis and optical microscopy results indicate that hydrophobic flocculation pretreatment effectively reduces the content of fine cuprite, and augments the apparent particle size in the pulp. We performed the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory and extended DLVO theory calculations to further support the interpretation of the results.
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