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 26 Issue 8
Aug.  2019
Turn off MathJax
目录
数据统计

分享

计量
  • 文章访问数:  596
  • HTML全文浏览量:  123
  • PDF下载量:  14
  • 被引次数: 0
文章导航 >  矿物冶金与材料学报（英文）  > 2019  >  26(8): 938-945
Yong-sheng Sun, Yan-feng Li, Yue-xin Han, and Yan-jun Li, Migration behaviors and kinetics of phosphorus during coal-based reduction of high-phosphorus oolitic iron ore, Int. J. Miner. Metall. Mater., 26(2019), No. 8, pp. 938-945. https://doi.org/10.1007/s12613-019-1810-0
Cite this article as:
Yong-sheng Sun, Yan-feng Li, Yue-xin Han, and Yan-jun Li, Migration behaviors and kinetics of phosphorus during coal-based reduction of high-phosphorus oolitic iron ore, Int. J. Miner. Metall. Mater., 26(2019), No. 8, pp. 938-945. https://doi.org/10.1007/s12613-019-1810-0
shu
引用本文 PDF XML SpringerLink
研究论文

Migration behaviors and kinetics of phosphorus during coal-based reduction of high-phosphorus oolitic iron ore

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

  • 通讯作者:

    Yong-sheng Sun    E-mail: yongshengsun@mail.neu.edu.cn

  • To understand the migration mechanisms of phosphorus (P) during coal-based reduction, a high-phosphorus oolitic iron ore was reduced by coal under various experimental conditions. The migration characteristics and kinetics of P were investigated by a field-emission electron probe microanalyzer (FE-EPMA) and using the basic principle of solid phase mass transfer, respectively. Experimental results showed that the P transferred from the slag to the metallic phase during reduction, and the migration process could be divided into three stages:phosphorus diffusing from the slag to the metallic interface, the formation of Fe-P compounds at the slag-metal interface and P diffusing from the slag-metal interface to the metallic interior. The reduction time and temperature significantly influenced the phosphorus content of the metallic and slag phases. The P content of the metallic phase increased with increasing reduction time and temperature, while that of the slag phase gradually decreased. The P diffusion constant and activation energy were determined and a migration kinetics model of P in coal-based reduction was proposed. P diffusion in the metallic phase was the controlling step of the P migration.
    • Research Article

    Migration behaviors and kinetics of phosphorus during coal-based reduction of high-phosphorus oolitic iron ore

    + Author Affiliations
      Abstract
    • To understand the migration mechanisms of phosphorus (P) during coal-based reduction, a high-phosphorus oolitic iron ore was reduced by coal under various experimental conditions. The migration characteristics and kinetics of P were investigated by a field-emission electron probe microanalyzer (FE-EPMA) and using the basic principle of solid phase mass transfer, respectively. Experimental results showed that the P transferred from the slag to the metallic phase during reduction, and the migration process could be divided into three stages:phosphorus diffusing from the slag to the metallic interface, the formation of Fe-P compounds at the slag-metal interface and P diffusing from the slag-metal interface to the metallic interior. The reduction time and temperature significantly influenced the phosphorus content of the metallic and slag phases. The P content of the metallic phase increased with increasing reduction time and temperature, while that of the slag phase gradually decreased. The P diffusion constant and activation energy were determined and a migration kinetics model of P in coal-based reduction was proposed. P diffusion in the metallic phase was the controlling step of the P migration.
      • FullText(HTML)
    • loading
      • Supplements(0)
      • References(26)
    • [1]
      J.W. Cha, D.Y. Kim, and S.M. Jung, Distribution behavior of phosphorus and metallization of iron oxide in carbothermic reduction of high-phosphorus iron ore, Metall. Mater. Trans. B, 46(2015), No. 5, p. 2165.
      [2]
      W. Yu, T.C. Sun, and T.Y. Hu, Desulfuration behavior of low-grade iron ore-coal briquette during the process of direct reduction followed by magnetic separation, ISIJ Int., 55(2015), No.1, p. 329.
      [3]
      M.I. Abro, A.G. Pathan, and A.H. Mallah, Liberation of oolitic hematite grains from iron ore, Dilband Mines Pakistan, Mehran Univ. Res. J. Eng. Technol., 30(2011), No. 2, p. 329.
      [4]
      S.X. Song, E.F. Campos-Toro, Y.M. Zhang, and A. Lopez-Valdivieso, Morphological and mineralogical characterizations of oolitic iron ore in the Exi region, China, Int. J. Miner. Metall. Mater., 20(2013), No. 2, p. 113.
      [5]
      G.H. Li, S.H. Zhang, M.J. Rao, Y.B. Zhang, and T. Jiang, Effects of sodium salts on reduction roasting and Fe-P separation of high-phosphorus oolitic hematite ore, Int. J. Miner. Process., 124(2013), p. 26.
      [6]
      W. Yu, T.C. Sun, Z.Z. Liu, J. Kou, and C.Y. Xu, Effects of particle sizes of iron ore and coal on the strength and reduction of high phosphorus oolitic hematite-coal composite briquettes, ISIJ Int., 54(2014), No. 1. p. 56.
      [7]
      J. Wu, Z.J. Wen, and M.J. Cen, Development of technologies for high phosphorus oolitic hematite utilization, Steel Res. Int., 82(2011), No. 5, p. 494.
      [8]
      A.P.L. Nunes, C.L.L. Pinto, G.E.S. Valadão, and P.R. de Magalhães Viana, Floatability studies of wavellite and preliminary results on phosphorus removal from a Brazilian iron ore by froth flotation, Miner. Eng., 39(2012), p. 206.
      [9]
      W. Yan, Y.S. Zhang, and Y.C. Liu, Flotation research on a high phosphorus-bearing oolitic hematite ore in Erxi, China Min. Mag., 20(2011), No. 11, p. 71.
      [10]
      P. Delvasto, A. Valverde, A. Ballester, J.A. Muñoz, F. González, M.L. Blázquez, J.M. Igual, and C. García-Balboa, Diversity and activity of phosphate bioleaching bacteria from a high-phosphorus iron ore, Hydrometallurgy, 92(2008), No. 3-4, p. 124.
      [11]
      H.H. Wang, G.Q. Li, D. Zhao, J.H. Ma, and J. Yang, Dephosphorization of high phosphorus oolitic hematite by acid leaching and the leaching kinetics, Hydrometallurgy, 171(2017), p. 61.
      [12]
      W.T. Xia, Z.D. Ren, and Y.F. Gao, Removal of phosphorus from high phosphorus iron ores by selective HCl leaching method, J. Iron. Steel Res. Int., 18(2011), No. 5, p. 1.
      [13]
      E. Matinde and M. Hino, Dephosphorization treatment of high phosphorus iron ore by pre-reduction, air jet milling and screening methods, ISIJ Int., 51(2011), No. 4, p. 544.
      [14]
      Y.F. Yu and C.Y. Qi, Magnetizing roasting mechanism and effective ore dressing process for oolitic hematite ore, J. Wuhan Univ. Technol. Mater. Sci. Ed., 26(2011), No. 2, p. 176.
      [15]
      Y.S. Sun, Y.X. Han, P. Gao, Z.H. Wang, and D.Z. Ren, Recovery of iron from high phosphorus oolitic iron ore using coal-based reduction followed by magnetic separation, Int. J. Miner. Metall. Mater., 20(2013), No. 5, p. 411.
      [16]
      K.Q. Li, W. Ni, M. Zhu, M.J. Zheng, and L. Yuan, Iron extraction from oolitic iron ore by a deep reduction process, J. Iron. Steel Res. Int., 18(2011), No. 8, p. 9.
      [17]
      W. Yu, T.C. Sun, J. Kou, Y.X. Wei, C.Y. Xu, and Z.Z. Liu, The function of Ca(OH)2 and Na2CO3 as additive on the reduction of high-phosphorus oolitic hematite-coal mixed pellets, ISIJ Int., 53(2013), No. 3, p. 427.
      [18]
      G.H. Li, M.J. Rao, C.Z. Ouyang, S.H. Zhang, Z.W. Peng, and T. Jiang, Distribution characteristics of phosphorus in the metallic iron during solid-state reductive roasting of oolitic hematite ore, ISIJ Int., 55(2015), No. 11, p. 2304.
      [19]
      M.J. Rao, C.Z. Ouyang, G.H. Li, S.H. Zhang, Y.B. Zhang, and T. Jiang, Behavior of phosphorus during the carbothermic reduction of phosphorus-rich oolitic hematite ore in the presence of Na2SO4, Int. J. Miner. Process., 143(2015), p. 72.
      [20]
      C.C. Yang, D.Q. Zhu, J. Pan, and L.M. Lu, Simultaneous recovery of iron and phosphorus from a high-phosphorus oolitic iron ore to prepare Fe-P alloy for high-phosphorus steel production, JOM, 69(2017), No. 9, p. 1663.
      [21]
      Y.S. Sun, Q. Zhang, Y.X. Han, P. Gao, and G.F. Li, Comprehensive utilization of iron and phosphorus from high-phosphorus refractory iron ore, JOM, 70(2018), No. 2, p. 144.
      [22]
      G.F. Li, Y.X. Han, P. Gao, and Y.S. Sun, Enrichment of phosphorus in reduced iron during coal based reduction of high phosphorus-containing oolitic hematite ore, Ironmaking Steelmaking, 43(2016), No. 3, p. 163.
      [23]
      Y.X. Han, G.F. Li, P. Gao, and Y.S. Sun, Reduction behaviour of apatite in oolitic haematite ore using coal as a reductant, Ironmaking Steelmaking, 44(2017), No. 4, p. 287.
      [24]
      P. Gao, G.F. Li, Y.X. Han, and Y.S. Sun, Reaction behavior of phosphorus in coal-based reduction of an oolitic hematite ore and pre-dephosphorization of reduced iron, Metals, 6(2016), No. 4, p. 82.
      [25]
      W. Yu, Q.Y. Tang, J.A. Chen, and T.C. Sun, Thermodynamic analysis of the carbothermic reduction of a high-phosphorus oolitic iron ore by FactSage, Int. J. Miner. Metall. Mater., 23(2016), No. 10, p. 1126.
      [26]
      Y.S. Sun, Y.X. Han, P. Gao, and Y.J. Li, Growth kinetics of metallic iron phase in coal-based reduction of oolitic iron ore, ISIJ Int., 56(2016), No. 10, p. 1697.
      • 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