留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
Volume 24 Issue 4
Apr.  2017
Turn off MathJax
目录
数据统计

分享

计量
  • 文章访问数:  415
  • HTML全文浏览量:  54
  • PDF下载量:  10
  • 被引次数: 0
文章导航 >  矿物冶金与材料学报（英文）  > 2017  >  24(4): 369-376
Ying-bo Dong, Hao Li, Hai Lin, and Yuan Zhang, Dissolution characteristics of sericite in chalcopyrite bioleaching and its effect on copper extraction, Int. J. Miner. Metall. Mater., 24(2017), No. 4, pp. 369-376. https://doi.org/10.1007/s12613-017-1416-3
Cite this article as:
Ying-bo Dong, Hao Li, Hai Lin, and Yuan Zhang, Dissolution characteristics of sericite in chalcopyrite bioleaching and its effect on copper extraction, Int. J. Miner. Metall. Mater., 24(2017), No. 4, pp. 369-376. https://doi.org/10.1007/s12613-017-1416-3
shu
引用本文 PDF XML SpringerLink
研究论文

Dissolution characteristics of sericite in chalcopyrite bioleaching and its effect on copper extraction

  • School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China

  • 通讯作者:

    Hai Lin    E-mail: linhai@ces.ustb.edu.cn

  • The effects of sericite particle size, rotation speed, and leaching temperature on sericite dissolution and copper extraction in a chalcopyrite bioleaching system were examined. Finer particles, appropriate temperature and rotation speed for Acidithiobacillus ferrooxidans resulted in a higher Al3+ dissolution concentration. The Al3+ dissolution concentration reached its highest concentration of 38.66 mg/L after 48-d leaching when the sericite particle size, temperature, and rotation speed were -43 μm, 30℃, and 160 r/min, respectively. Meanwhile, the sericite particle size, rotation speed, and temperature can affect copper extraction. The copper extraction rate is higher when the sericite particle size is finer. An appropriately high temperature is favorable for copper leaching. The dissolution of sericite fitted the shrinking core model, 1-(2/3)α-(1-α)2/3=k1t, which indicates that internal diffusion is the decision step controlling the overall reaction rate in the leaching process. Scanning electron microscopy analysis showed small precipitates covered on the surface of sericite after leaching, which increased the diffusion resistance of the leaching solution and dissolved ions.
    • Research Article

    Dissolution characteristics of sericite in chalcopyrite bioleaching and its effect on copper extraction

    + Author Affiliations
      Abstract
    • The effects of sericite particle size, rotation speed, and leaching temperature on sericite dissolution and copper extraction in a chalcopyrite bioleaching system were examined. Finer particles, appropriate temperature and rotation speed for Acidithiobacillus ferrooxidans resulted in a higher Al3+ dissolution concentration. The Al3+ dissolution concentration reached its highest concentration of 38.66 mg/L after 48-d leaching when the sericite particle size, temperature, and rotation speed were -43 μm, 30℃, and 160 r/min, respectively. Meanwhile, the sericite particle size, rotation speed, and temperature can affect copper extraction. The copper extraction rate is higher when the sericite particle size is finer. An appropriately high temperature is favorable for copper leaching. The dissolution of sericite fitted the shrinking core model, 1-(2/3)α-(1-α)2/3=k1t, which indicates that internal diffusion is the decision step controlling the overall reaction rate in the leaching process. Scanning electron microscopy analysis showed small precipitates covered on the surface of sericite after leaching, which increased the diffusion resistance of the leaching solution and dissolved ions.
      • FullText(HTML)
    • loading
      • Supplements(0)
      • References(21)
    • [1]
      H. R. Watling, The bioleaching of sulphide minerals with emphasis on copper sulphides:a review, Hydrometallurgy, 84(2006), No. 1-2, p. 81.
      [2]
      Y. G. Guo, P. Huang, W. G. Zhang, X. W. Yuan, F. X. Fan, H. L. Wang, J. S. Liu, and Z. H. Wang, Leaching of heavy metals from Dexing copper mine tailings pond, Trans. Nonferrous Met. Soc. China, 23(2013), No. 10, p. 3068.
      [3]
      X. L. Mo, H. Lin, K. B. Fu, Y. B. Dong, and C. Y. Xu, Effect of sericite on bioleaching of chalcopyrite, Chin. J. Nonferrous Met., 22(2012), No. 5, p. 1475.
      [4]
      M. Dopson, L. Lövgren, and B. Dan, Silicate mineral dissolution in the presence of acidophilic microorganisms:Implications for heap bioleaching, Hydrometallurgy, 96(2009), No. 4, p. 288.
      [5]
      V. Ochoaherrera, G. León, Q. Banihani, J. A. Field, and R. Sierraalvarez, Toxicity of copper (Ⅱ) ions to microorganisms in biological wastewater treatment systems, Sci. Total Environ., 412-413(2011), No. 13, p. 380.
      [6]
      J. Fischer, A. Quentmeier, S. Gansel, V. Sabados, and C. G. Friedrich, Inducible aluminium resistance of Acidiphilium cryptum and aluminium tolerance of other acidophilic bacteria, Arch. Microbiol., 178(2002), No. 6, p. 554.
      [7]
      K. R. Blight and D. E. Ralph, Aluminium sulphate and potassium nitrate effects on batch culture of iron oxidising bacteria, Hydrometallurgy, 92(2008), No. 3-4, p. 130.
      [8]
      M. Suwalsky, B. Norris, F. Villena, F. Cuevas, P. Sotomayor, and P. Zatta, Aluminum fluoride affects the structure and functions of cell membranes, Food Chem. Toxicol., 42(2004), No. 6, p. 925.
      [9]
      Y. B. Dong, H. Lin, H. Wang, X. L. Mo, K. B. Fu, and H. W. Wen, Effects of ultraviolet mutation on bioleaching of low-grade copper tailings, Miner. Eng., 24(2011), No. 8, p. 870.
      [10]
      D. Bingöl, M. Canbazoğlu, and S. Aydoğan, Dissolution kinetics of malachite in ammonia/ammonium carbonate leaching, Hydrometallurgy, 76(2005), No. 1-2, p. 55.
      [11]
      David R. Ely, R. Edwin Garcíab, and M. Thommes, Ostwald-Freundlich diffusion-limited dissolution kinetics of nanoparticles, Powder Technol., 257(2014), p. 120.
      [12]
      A. Sanna, A. Lacinska, M. Styles, and M. M. Maroto-Valer, Silicate rock dissolution by ammonium bisulphate for pH swing mineral CO2 sequestration, Fuel Process. Technol., 120(2010), No. 4, p. 128.
      [13]
      A. A. Baba and F. A. Adekola, A study of dissolution kinetics of a Nigerian galena ore in hydrochloric acid, J. Saudi Chem. Soc., 16(2012), No. 4, p. 377.
      [14]
      M. Gleisner, R. B. H. Jr, and P. C. F. Kockuma, Pyrite oxidation by Acidithiobacillus ferrooxidans at various concentrations of dissolved oxygen, Chem. Geol., 225(2006), No. 1-2, p. 16.
      [15]
      Z. Y. Ding, Z. L. Yin, H. P. Hu, and Q. Y. Chen, Dissolution kinetics of zinc silicate (hemimorphite) in ammoniacal solution, Hydrometallurgy, 104(2010), No. 2, p. 201.
      [16]
      K. C. Liddell, Shrinking core models in hydrometallurgy:What students are not being told about the pseudo-steady approximation, Hydrometallurgy, 79(2005), No. 1-2, p. 62.
      [17]
      R. Salmimies, M. Mannila, J. Kallas, and A. Häkkinen, Acidic dissolution of hematite:kinetic and thermodynamic investigations with oxalic acid, Int. J. Miner. Process., 110-111(2012), p. 121.
      [18]
      T. J. Hu, G. M. Zeng, and X. Z. Yuan, Leaching kinetics of silver extracted by thiourea from residue in hydrometallurgy of zinc, Chin. J. Nonferrous Met., 11(2001), No. 5, p. 933.
      [19]
      S. H. Ju, M. T. Tang, S. H. Yang, and Y. Li, Dissolution kinetics of smithsonite ore in ammonium chloride solution, Hydrometallurgy, 80(2005), No. 1, p. 67.
      [20]
      V. Safari, G. Arzpeyma, F. Rashchi, and N. Mostoufi, A shrinking particle-shrinking core model for leaching of a zinc ore containing silica, Int. J. Miner. Process., 93(2009), No. 1, p. 79.
      [21]
      A. Amiri, G. D. Ingram, A. V. Bekker, I. Livk, and N. E. Maynard, A multi-stage, multi-reaction shrinking core model for self-inhibiting gas-solid reactions, Adv. Powder Technol., 24(2013), No. 4, p. 728.
      • Relative Articles
      Cited By

    Catalog


    • /

      返回文章
      返回

      版权所有 ©《矿物冶金与材料学报（英文）》编辑部

      地址：北京市海淀区学院路30号邮政编码：100083

      电子邮箱：journal@ustb.edu.cn电话：+86-10-62332875

      本系统由 北京仁和汇智信息技术有限公司 开发    百度统计