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 2
Feb.  2019
Turn off MathJax
目录
数据统计

分享

计量
  • 文章访问数:  603
  • HTML全文浏览量:  121
  • PDF下载量:  15
  • 被引次数: 0
文章导航 >  矿物冶金与材料学报（英文）  > 2019  >  26(2): 152-159
Yong-qiang Zhao, Ti-chang Sun, Hong-yu Zhao, Chao Chen,  and Xiao-ping Wang, Effect of reductant type on the embedding direct reduction of beach titanomagnetite concentrate, Int. J. Miner. Metall. Mater., 26(2019), No. 2, pp. 152-159. https://doi.org/10.1007/s12613-019-1719-7
Cite this article as:
Yong-qiang Zhao, Ti-chang Sun, Hong-yu Zhao, Chao Chen,  and Xiao-ping Wang, Effect of reductant type on the embedding direct reduction of beach titanomagnetite concentrate, Int. J. Miner. Metall. Mater., 26(2019), No. 2, pp. 152-159. https://doi.org/10.1007/s12613-019-1719-7
shu
引用本文 PDF XML SpringerLink
研究论文

Effect of reductant type on the embedding direct reduction of beach titanomagnetite concentrate

  • Key Laboratory for High-Efficient Mining and Safety of Metal Mines, Ministry of Education, University of Science and Technology Beijing, Beijing 100083, China

  • School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China

  • 通讯作者:

    Ti-chang Sun    E-mail: suntc@ces.ustb.edu.cn

    Hong-yu Zhao    E-mail: yuyu_3003@126.com

  • Iron and titanium were recovered from beach titanomagnetite (TTM) concentrate by embedding direct reduction and magnetic separation. The reduction products and the effects of the reductant type and reduction temperature on the reduction behavior were investigated. The results showed that the reduction of TTM concentrate was strongly related to the gasification reactivity of the reductant. Bitumite presented a better product index than wheat-straw biochar and coke, mainly because the gasification reactivity of bitumite was better than that of the other reductants. In addition, high temperatures were not beneficial to embedding direct reduction because of the emergence of a molten phase and iron-joined crystals, which in turn reduced the diffusion rate of the reducing gas and impeded the reduction reaction in the central area of the roasted briquette. The use of bitumite as the reductant at a C/Fe molar ratio of 1.4 and a reduction temperature of 1200℃ for 120 min resulted in direct-reduction iron powder assaying 90.28wt% TFe and 0.91wt% TiO2 with an iron recovery of 91.83% and titanium concentrate assaying 46.01wt% TiO2 with a TiO2 recovery of 91.19%. Titanium existed mainly in the form of anosovite and ilmenite in the titanium concentrate.
    • Research Article

    Effect of reductant type on the embedding direct reduction of beach titanomagnetite concentrate

    + Author Affiliations
      Abstract
    • Iron and titanium were recovered from beach titanomagnetite (TTM) concentrate by embedding direct reduction and magnetic separation. The reduction products and the effects of the reductant type and reduction temperature on the reduction behavior were investigated. The results showed that the reduction of TTM concentrate was strongly related to the gasification reactivity of the reductant. Bitumite presented a better product index than wheat-straw biochar and coke, mainly because the gasification reactivity of bitumite was better than that of the other reductants. In addition, high temperatures were not beneficial to embedding direct reduction because of the emergence of a molten phase and iron-joined crystals, which in turn reduced the diffusion rate of the reducing gas and impeded the reduction reaction in the central area of the roasted briquette. The use of bitumite as the reductant at a C/Fe molar ratio of 1.4 and a reduction temperature of 1200℃ for 120 min resulted in direct-reduction iron powder assaying 90.28wt% TFe and 0.91wt% TiO2 with an iron recovery of 91.83% and titanium concentrate assaying 46.01wt% TiO2 with a TiO2 recovery of 91.19%. Titanium existed mainly in the form of anosovite and ilmenite in the titanium concentrate.
      • FullText(HTML)
    • loading
      • Supplements(0)
      • References(24)
    • [1]
      W.S. Zhang, Z.W. Zhu, and C.Y. Cheng, A literature review of titanium metallurgical processes, Hydrometallurgy, 108(2011), No. 3-4, p. 177.
      [2]
      J. Deng, X. Xue, and G.G. Liu, Current situation and development of comprehensive utilization of vanadium-bearing titanomagnetite at Pangang, J. Marer. Met., 6(2007), No. 2, p. 83.
      [3]
      Y.M. Wang, Z.F. Yuan, Z.C. Guo, Q.Q. Tang, Z.Y. Li, and W.Z. Jiang, Reduction mechanism of natural ilmenite with graphite, Trans. Nonferrous Met. Soc. China, 18(2008), No. 4, p. 962.
      [4]
      H.Y. Sun, J.S. Wang, X.J. Dong, and Q.G. Xue, A literature review of titanium slag metallurgical processes, Metal. Int., 17(2012), No. 7, p. 49.
      [5]
      E. Park and O. Ostrovski, Reduction of titania-ferrous ore by carbon monoxide, ISIJ Int., 43(2003), No. 9, p. 1316.
      [6]
      T.Y. Hu, T.C. Sun, J. Kou, C. Geng, X.P. Wang, and C. Chen, Recovering titanium and iron by co-reduction roasting of seaside titanomagnetite and blast furnace dust, Int. J. Miner. Process., 165(2011), p. 28.
      [7]
      Z.S. Hu, Y.S. Zhang, Y.H. Yang, X.Y. Li, and M.G. Zhou, Problems and Suggestions in the Exploitation of Beach Placer, Multipurpose Util. Miner. Res., (2011), No. 4, p. 74.
      [8]
      S.H. Wu, Reasonable utilization ways of V-Ti bearing beach placer, Sintering Pelletizing, 36(2011), No. 2, p. 35.
      [9]
      B.X. Hong and W.Z. Fu, A study of the mineral composition of vanadium titanium magnetite in Indonesia, Multipurpose Util. Miner. Res., (2012), No. 5, p. 44.
      [10]
      D.S. Chen, B. Song, L.N. Wang, T. Qi, Y. Wang, and W.J. Wang, Solid state reduction of Panzhihua titanomagnetite concentrates with pulverized coal, Miner. Eng., 24(2011), No. 8, p. 864.
      [11]
      B.C. Jena, W. Dresler, and I.G. Reilly, Extraction of titanium, vanadium and iron from titanomagnetite deposits at pipestone lake, Manitoba, Canada, Miner. Eng., 8(1995), No. 1-2, p. 159.
      [12]
      K.C. Sole, Recovery of titanium from the leach liquors of titaniferous magnetites by solvent extraction:Part 1. Review of the literature and aqueous thermodynamics, Hydrometallurgy, 51(1999), No. 2, p. 239.
      [13]
      K.C. Sole, Recovery of titanium from the leach liquors of titaniferous magnetites by solvent extraction:Part 2. Laboratory-scale studies, Hydrometallurgy, 51(1999), No. 3, p. 263.
      [14]
      T.Y. Hu, T.C. Sun, J. Kou, C. Geng, and Y.Q. Zhao, Effects and mechanisms of fluorite on the co-reduction of blast furnace dust and seaside titanomagnetite, Int. J. Miner. Metall. Mater., 24(2017), No. 11, p. 1201.
      [15]
      E.X. Gao, T.C. Sun, C.Y. Xu, Z.G. Liu, Z.Z. Liu, and C.X. Yu, Titanium and ferrum separation of a seaside titanomagnetite based on reduction roasting, Met. Mine, 2013, No. 11, p. 46.
      [16]
      C. Geng, T.C. Sun, H.F. Yang, Y.W. Ma, E.X. Gao, and C.Y. Xu, Effect of Na2SO4 on the embedding direct reduction of beach titanomagnetite and the separation of titanium and iron by magnetic separation, ISIJ Int., 55(2015), No. 12, p. 2543
      [17]
      E.X. Gao, T.C. Sun, Z.G. Liu, C. Geng, and C.Y. Xu, Effect of sodium sulfate on direct reduction of beach titanomagnetite for separationof iron and titanium, J. Iron Steel Res. Int., 23(2016), No. 5, p. 428.
      [18]
      M.Y. Wang, S.F. Zhou, X.W. Wang, B.F. Chen, H.X. Yang, S.K. Wang, and P.F. Luo, Recovery of Iron from chromium vanadium-bearing titanomagnetite concentrate by direct reduction, JOM, 68(2016), No. 10, p. 2698.
      [19]
      G.W. Wang, J.L. Zhang, X.M. Hou, J.G. Shao, and W.W. Geng, Study on CO₂ gasification properties and kinetics of biomass chars and anthracite char, Bioresour. Technol., 177(2015), p. 66.
      [20]
      W. Lv, X.W. Lv, J.Y. Xiang, Y.Y. Zhang, S.P. Li, C.G. Bai, B. Song, and K.X. Han, A novel process to prepare high-titanium slag by carbothermic reduction of pre-oxidized ilmenite concentrate with the addition of Na2SO4, Int. J. Miner. Process., 167(2017), p. 68.
      [21]
      W. Yu, T.C. Sun, Q. Cui, C.Y. Xu, and J. Kou, Effect of coal type on the reduction and magnetic separation of a high-phosphorus oolitic hematite ore, ISIJ Int., 55(2015), No. 3, p. 536.
      [22]
      S.M. Jung, Thermogravimetry and reaction gas analysis of the carbothermic reduction of titanomagnetite ores with char, ISIJ Int., 54(2014), No. 4, p. 781.
      [23]
      W. Yu, Study on the Preparation of High-phosphours Oolitic Hematite-coal Composite Briquette and Its Direct Reduction-magnetic Separation[Dissertation], University of Science and Technology Beijing, Beijing, 2015, p. 64.
      [24]
      Y.L. Li, T.C. Sun, J. Kou, Q. Guo, and C.Y. Xu, Study on phosphorus removal of high-phosphorus oolitic hematite by coal-based direct reduction and magnetic separation, Miner. Process. Extr. Metall. Rev., 35(2014), No. 1, p. 66.
      • 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