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 25 Issue 8
Aug.  2018
Turn off MathJax
目录
数据统计

分享

计量
  • 文章访问数:  513
  • HTML全文浏览量:  68
  • 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）  > 2018  >  25(8): 871-880
Wei-dong Tang, Xiang-xin Xue, Song-tao Yang, Li-heng Zhang,  and Zhuang Huang, Influence of basicity and temperature on bonding phase strength, microstructure, and mineralogy of high-chromium vanadium–titanium magnetite, Int. J. Miner. Metall. Mater., 25(2018), No. 8, pp. 871-880. https://doi.org/10.1007/s12613-018-1636-1
Cite this article as:
Wei-dong Tang, Xiang-xin Xue, Song-tao Yang, Li-heng Zhang,  and Zhuang Huang, Influence of basicity and temperature on bonding phase strength, microstructure, and mineralogy of high-chromium vanadium–titanium magnetite, Int. J. Miner. Metall. Mater., 25(2018), No. 8, pp. 871-880. https://doi.org/10.1007/s12613-018-1636-1
shu
引用本文 PDF XML SpringerLink
研究论文

Influence of basicity and temperature on bonding phase strength, microstructure, and mineralogy of high-chromium vanadium–titanium magnetite

  • School of Metallurgy, Northeastern University, Shenyang 110819, China

  • 通讯作者:

    Xiang-xin Xue    E-mail: xuexx@mail.neu.edu.cn

  • To develop a smelting process for the comprehensive utilization of high-chromium vanadium-titanium magnetite (HCVTM), the micro-sinter test was applied to investigate the influence of basicity and temperature on the HCVTM sinters. The bonding phase strength (BS) was tested via an electronic universal testing machine. The phase transformations of the HCVTM sinters were detected via X-ray diffraction (XRD), whereas the structure and mineralogy of the HCVTM sinters under different temperatures and basicities were detected via scanning electron microscopy in combination with energy-dispersive spectroscopy (SEM–EDS). Our results demonstrate that the BS of the HCVTM sinters exhibits a slightly increasing tendency with an increase in temperature when the basicity is 2.4 and within the range of 2.8–4.0. Many cracks, small size crystals, and dependent phase structures are generated by increasing the sinter basicity. The BS is lower than 4000 N when the basicity is 2.2 and 2.8. When the temperature is in the range of 1280–1300℃, the BS exceeds 4000 N with the basicity of 2.0, 2.4, and 3.4–4.0. The pore size of the HCVTM sinters increases with the increase of the temperature. The perovskite decreases, whereas the silicate phase increases with basicity higher than 3.2. This study provides theoretical and technical foundations for the effective production of HCVTM sinters.
    • Research Article

    Influence of basicity and temperature on bonding phase strength, microstructure, and mineralogy of high-chromium vanadium–titanium magnetite

    + Author Affiliations
      Abstract
    • To develop a smelting process for the comprehensive utilization of high-chromium vanadium-titanium magnetite (HCVTM), the micro-sinter test was applied to investigate the influence of basicity and temperature on the HCVTM sinters. The bonding phase strength (BS) was tested via an electronic universal testing machine. The phase transformations of the HCVTM sinters were detected via X-ray diffraction (XRD), whereas the structure and mineralogy of the HCVTM sinters under different temperatures and basicities were detected via scanning electron microscopy in combination with energy-dispersive spectroscopy (SEM–EDS). Our results demonstrate that the BS of the HCVTM sinters exhibits a slightly increasing tendency with an increase in temperature when the basicity is 2.4 and within the range of 2.8–4.0. Many cracks, small size crystals, and dependent phase structures are generated by increasing the sinter basicity. The BS is lower than 4000 N when the basicity is 2.2 and 2.8. When the temperature is in the range of 1280–1300℃, the BS exceeds 4000 N with the basicity of 2.0, 2.4, and 3.4–4.0. The pore size of the HCVTM sinters increases with the increase of the temperature. The perovskite decreases, whereas the silicate phase increases with basicity higher than 3.2. This study provides theoretical and technical foundations for the effective production of HCVTM sinters.
      • FullText(HTML)
    • loading
      • Supplements(0)
      • References(26)
    • [1]
      C.E. Loo and W. Leung, Factors influencing the bonding phase structure of iron ore sinters, ISIJ Int., 43(2003), No. 9, p. 1393.
      [2]
      L. Lu, R.J. Holmes, and J.R. Manuel, Effects of alumina on sintering performance of hematite iron ores, ISIJ Int., 47(2007), No. 3, p. 349.
      [3]
      Y.L. Sui, Y.F. Guo, T. Jiang, and G.Z. Qiu, Reduction kinetics of oxidized vanadium titano-magnetite pellets using carbon monoxide and hydrogen, J. Alloys Compd., 706(2017), p. 546.
      [4]
      C.Y. Lu, X.L. Zou, X.G. Lu, X.L. Xie, K. Zheng, W. Xiao, H.W. Cheng, and G.S. Li, Reductive kinetics of Panzhihua ilmenite with hydrogen, Trans. Nonferrous Met. Soc. China, 26(2016), No. 12, p. 3266.
      [5]
      C. Takano, A.P. Zambrano, A.E.A. Nogueira, M.B. Mourao, and Y. Iguchi, Chromites reduction reaction mechanisms in carbon–chromites composite agglomerates at 1773K, ISIJ Int., 47(2007), No. 11, p. 1585.
      [6]
      M.G. Rocha, A.S. da Silva, M.B. Mourao, M.H.N. Kurauchi, and C. Takano, Fundamental aspects of sintering of chromites concentrates, Miner. Process. Extr. Metall., 123(2014), No. 4, p. 251.
      [7]
      W.G. Mumme, The crystal structure of SFCA–Ⅱ, Ca5.1Al9.3Fe3+18.7Fe2+0.9O48 a new homologue of the aenigmatite structure-type, and structure refinement of SFCA-type, Ca2Al5Fe7O20. Implications for the nature of the “ternary-phase solid-solution” previously reported in the CaO-Al2O3-iron oxide system, Neues Jahrb. Mineral. Abh., 178(2003), No. 3, p. 307.
      [8]
      N.A.S. Webster, M.I. Pownceby, I.C. Madsen, and J.A. Kimpton, Silico-ferrite of calcium and aluminum (SFCA) iron ore sinter bonding phases: new insights into their formation during heating and cooling, Metall. Mater. Trans. B, 43(2012), No. 6, p. 1344.
      [9]
      T. Umadevi, R. Sah, and P.C. Mahapatra, Influence of sinter basicity (CaO/SiO2) on low and high alumina iron ore sinter quality, Miner. Process. Extr. Metall., 123(2014), No. 2, p. 75.
      [10]
      M.I. Pownceby and J.M.F. Clout, Importance of fine ore chemical composition and high temperature phase relations: applications to iron ore sintering and pelletising, Miner. Process. Extr. Metall., 112(2003), No. 1, p. 44.
      [11]
      N.A.S. Webster, M.I. Pownceby, and I.C. Madsen, In situ X-ray diffraction investigation of the formation mechanisms of silico-ferrite of calcium and aluminium-I-type (SFCA-I-type) complex calcium ferrites, ISIJ Int., 53(2013), No. 8, p. 1334.
      [12]
      M.I. Pownceby, N.A.S. Webster, J.R. Manuel, and N. Ware, The influence of ore composition on sinter phase mineralogy and strength, Miner. Process. Extr. Metall., 125(2016), No. 3, p. 140.
      [13]
      N.A.S. Webster, D.P. O’dea, B.G. Ellis, and M.I. Pownceby, Effects of gibbsite, kaolinite and Al-rich goethite as alumina sources on silico-ferrite of calcium and aluminium (SFCA) and SFCA-I iron ore sinter bonding phase formation, ISIJ Int., 57(2017), No. 1, p. 41.
      [14]
      N.V.Y. Scarlett, I.C. Madsen, M.I. Pownceby, and A.N. Christensen, In situ X-ray diffraction analysis of iron ore sinter phases, J. Appl. Crystallogr., 37(2004), No. 3, p. 362.
      [15]
      S.L. Wu, G.L. Zhang, S.G. Chen, and B. Su, Influencing factors and effects of assimilation characteristic of iron ores in sintering process, ISIJ Int., 54(2014), No. 3, p. 582.
      [16]
      M.K. Kalenga and A.M. Garbers-Craig, Investigation into how the magnesia, silica, and alumina contents of iron ore sinter influence its mineralogy and properties, J. South. Afr. Inst. Min. Metall., 110(2010), No. 8, p. 447.
      [17]
      M. Sinha and R.V. Ramna, Effect of variation of alumina on the microhardness of iron ore sinter phases, ISIJ Int., 49(2009), No. 5, p. 719.
      [18]
      T.R.C. Patrick and M.I. Pownceby, Stability of silico-ferrite of calcium and aluminum (SFCA) in air-solid solution limits between 1240℃ and 1390℃ and phase relationships within the Fe2O3–CaO–Al2O3–SiO2(FCAS) system, Metall. Mater. Trans. B, 33(2002), No. 1, p. 79.
      [19]
      T. Bhattacharyya, D.K. Pal, and P. Srivastava, Formation of gibbsite in the presence of 2:1 minerals: an example from ultisols of northeast India, Clay Miner., 35(2000), No. 5, p. 827.
      [20]
      M.P. Antony, A. Jha, and V. Tathavadkar, Alkali roasting of Indian chromite ores: thermodynamic and kinetic considerations, Miner. Process. Extr. Metall., 115(2013), No. 2, p. 71.
      [21]
      D. Oliveira, S.L. Wu, Y.M. Dai, J. Xu, and H. Chen, Sintering properties and optimal blending schemes of iron ores, J. Iron Steel Res. Int., 19(2012), No. 6, p. 1.
      [22]
      J.J. Dong, G. Wang, M.F. Zuo, H. Li, and Q.G. Xue, Characteristics of the Sierra Leone high alumina iron ore and utilization in sintering, Adv. Mater. Res., 881-883(2014), p. 1515.
      [23]
      X. Ma, W.J. Bruckard, and R. Holmes, Effect of collector, pH and ionic strength on the cationic flotation of kaolinite, Int. J. Miner. Process., 93(2009), No. 1, p. 54.
      [24]
      D.H. Liu, J.L. Zhang, Z.J. Liu, Y.Z. Wang, X. Xue, and J. Yan, Effects of iron sand ratios on the basic characteristics of vanadium titanium mixed ores, JOM, 68(2016), No. 9, p. 2418.
      [25]
      U.S. Yadav, B.D. Pandey, B.K. Das, and D.N. Jena, Influence of magnesia on sintering characteristics of iron ore, Ironmaking Steelmaking, 29(2002), No. 2, p. 91.
      [26]
      H.G. Li, J.L. Zhang, Y.D. Pei, Z.X. Zhao, and Z.J. Ma, Melting characteristics of iron ore fine during sintering process, J. Iron Steel Res. Int., 18(2011), No. 5, p. 11.
      • 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