SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2013, Vol. 21 ›› Issue (8): 933-936.DOI: 10.1016/S1004-9541(13)60545-5

• 研究简报 • 上一篇    

Kinetics and Modeling of Chemical Leaching of Sphalerite Concentrate Using Ferric Iron in a Redox-controlled Reactor

宋健1,2, 高玲3, 林建群1, 吴洪斌4, 林建强1   

  1. 1 State Key Lab of Microbial Technology, Shandong University, Jinan 250100, China;
    2 Department of Pharmacy and Biotechnology, Zibo Vocational Institute, Zibo 255314, China;
    3 Shandong Provincial Key Lab for Distributed Computer Software Novel Technology, School of Information Science and Engineering, Shandong Normal University, Jinan 250014, China;
    4 Institute of Agro-products Processing Science and Technology, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi 832000, China
  • 收稿日期:2012-07-23 修回日期:2013-02-10 出版日期:2013-08-28 发布日期:2013-08-24
  • 通讯作者: GAO Ling
  • 基金资助:

    Supported by the National Basic Research Program (2010CB630902, 2004CB619202), the National Natural Science Foundation of China (31070034, 30800011, 31260396), the Knowledge Innovation Program of CAS (2AKSCX2-YW-JS401), and the Reward Fund for Young Scientists of Shandong Province (2007BS08002) of China.

Kinetics and Modeling of Chemical Leaching of Sphalerite Concentrate Using Ferric Iron in a Redox-controlled Reactor

SONG Jian1,2, GAO Ling3, LIN Jianqun1, WU Hongbin4, LIN Jianqiang1   

  1. 1 State Key Lab of Microbial Technology, Shandong University, Jinan 250100, China;
    2 Department of Pharmacy and Biotechnology, Zibo Vocational Institute, Zibo 255314, China;
    3 Shandong Provincial Key Lab for Distributed Computer Software Novel Technology, School of Information Science and Engineering, Shandong Normal University, Jinan 250014, China;
    4 Institute of Agro-products Processing Science and Technology, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi 832000, China
  • Received:2012-07-23 Revised:2013-02-10 Online:2013-08-28 Published:2013-08-24
  • Supported by:

    Supported by the National Basic Research Program (2010CB630902, 2004CB619202), the National Natural Science Foundation of China (31070034, 30800011, 31260396), the Knowledge Innovation Program of CAS (2AKSCX2-YW-JS401), and the Reward Fund for Young Scientists of Shandong Province (2007BS08002) of China.

摘要: This work presents a study for chemical leaching of sphalerite concentrate under various constant Fe3+ concentrations and redox potential conditions. The effects of Fe3+ concentration and redox potential on chemical leaching of sphalerite were investigated. The shrinking core model was applied to analyze the experimental results. It was found that both the Fe3+ concentration and the redox potential controlled the chemical leaching rate of sphalerite. A new kinetic model was developed, in which the chemical leaching rate of sphalerite was proportional to Fe3+ concentration and Fe3+/Fe2+ ratio. All the model parameters were evaluated from the experimental data. The model predictions fit well with the experimental observed values.

关键词: sphalerite, leaching, kinetic model, Fe3+ concentration, redox potential, LabVIEW

Abstract: This work presents a study for chemical leaching of sphalerite concentrate under various constant Fe3+ concentrations and redox potential conditions. The effects of Fe3+ concentration and redox potential on chemical leaching of sphalerite were investigated. The shrinking core model was applied to analyze the experimental results. It was found that both the Fe3+ concentration and the redox potential controlled the chemical leaching rate of sphalerite. A new kinetic model was developed, in which the chemical leaching rate of sphalerite was proportional to Fe3+ concentration and Fe3+/Fe2+ ratio. All the model parameters were evaluated from the experimental data. The model predictions fit well with the experimental observed values.

Key words: sphalerite, leaching, kinetic model, Fe3+ concentration, redox potential, LabVIEW