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Volume 25 Issue 3
Mar.  2018
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文章导航 >  矿物冶金与材料学报（英文）  > 2018  >  25(3): 262-270
Nag-Choul Choi, Kang Hee Cho, Bong Ju Kim, Soonjae Lee, and Cheon Young Park, Enhancement of Au-Ag-Te contents in tellurium-bearing ore minerals via bioleaching, Int. J. Miner. Metall. Mater., 25(2018), No. 3, pp. 262-270. https://doi.org/10.1007/s12613-018-1569-8
Cite this article as:
Nag-Choul Choi, Kang Hee Cho, Bong Ju Kim, Soonjae Lee, and Cheon Young Park, Enhancement of Au-Ag-Te contents in tellurium-bearing ore minerals via bioleaching, Int. J. Miner. Metall. Mater., 25(2018), No. 3, pp. 262-270. https://doi.org/10.1007/s12613-018-1569-8
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研究论文

Enhancement of Au-Ag-Te contents in tellurium-bearing ore minerals via bioleaching

  • Department of Rural Systems Engineering, Seoul National University, Seoul 08826, Republic of Korea;

  • Department of Earth and Environmental Sciences, Korea University, Seoul 02841, Republic of Korea;

  • Department of Energy and Resource Engineering, Chosun University, Gwangju 61452, Republic of Korea

  • 通讯作者:

    Soonjae Lee    E-mail: soonjam@korea.ac.kr

    Cheon Young Park    E-mail: cybpark@chosun.ac.kr

  • The purpose of this study was to enhance the content of valuable metals, such as Au, Ag, and Te, in tellurium-bearing minerals via bioleaching. The ore samples composed of invisible Au and Au paragenesis minerals (such as pyrite, chalcopyrite, sphalerite and galena) in combination with tellurium-bearing minerals (hessite, sylvanite and Tellurobismuthite) were studied. Indigenous microbes from mine drainage were isolated and identified as Acidithiobacillus ferrooxidans, which were used in bioleaching after adaption to copper. The effect of the microbial adaption on the bioleaching performance was then compared with the results produced by the non-adaptive process. The microbial adaption enhanced the Au-Ag-Te contents in biological leaching of tellurium-bearing ore minerals. This suggests that bioleaching with adapted microbes can be used both as a pretreatment and in the main recovery processes of valuable metals.
    • Research Article

    Enhancement of Au-Ag-Te contents in tellurium-bearing ore minerals via bioleaching

    + Author Affiliations
      Abstract
    • The purpose of this study was to enhance the content of valuable metals, such as Au, Ag, and Te, in tellurium-bearing minerals via bioleaching. The ore samples composed of invisible Au and Au paragenesis minerals (such as pyrite, chalcopyrite, sphalerite and galena) in combination with tellurium-bearing minerals (hessite, sylvanite and Tellurobismuthite) were studied. Indigenous microbes from mine drainage were isolated and identified as Acidithiobacillus ferrooxidans, which were used in bioleaching after adaption to copper. The effect of the microbial adaption on the bioleaching performance was then compared with the results produced by the non-adaptive process. The microbial adaption enhanced the Au-Ag-Te contents in biological leaching of tellurium-bearing ore minerals. This suggests that bioleaching with adapted microbes can be used both as a pretreatment and in the main recovery processes of valuable metals.
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