Skip to main content
SpringerLink
Log in

Effect of direct charging of hot recycled slag on hot metal pretreatment dephosphorization in a dephosphorization furnace

  • Original Paper
  • Published:
Journal of Iron and Steel Research International Aims and scope Submit manuscript

Abstract

Industrial experiments were carried out to investigate the effect of the direct charging of hot recycled slag (DCHRS) on hot metal pretreatment dephosphorization in a dephosphorization furnace. The bulk compositions of semi-steel and slag show that a better dephosphorization effect could be achieved by applying the DCHRS process in the dephosphorization furnace. Compared with the bulk compositions in normal heats, the mean contents of phosphorus in the semi-steel and total Fe in the final slag were decreased by 0.006 and 1.93 wt.%, respectively, with an increase of approximately 6 °C in the semi-steel temperature. According to mineralogical observations, the dephosphorization slags in normal heats and test heats were similar in petrographic constituents, but the metal loss was markedly decreased in the DCHRS process. Thermodynamic calculations show that even though the dephosphorization slag in the DCHRS process had the same dephosphorization capacity as that in the normal refining process, the phosphorus distribution between slag and hot metal in the new process was slightly higher and closer to the reaction equilibrium. Meanwhile, proper operating conditions, including slag basicity, total Fe content in the final slag, bath temperature, slag formation and slag volume, were optimized to improve the dephosphorization efficiency under the condition of the DCHRS process. The consumption of lime, light-burnt dolomite and oxygen during blowing was significantly decreased by the DCHRS process.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13

Similar content being viewed by others

References

  1. Res. Gp. of Phosphorus Segregation, Acta Metall. Sin. 17 (1981) 124–129.

  2. Z.H. Tian, L.Q. Ai, K.K. Cai, Steelmaking 19 (2003) No. 6, 13–18.

    Google Scholar 

  3. J.H. Liu, Y.P. Bao, W. Sun, S.Q. Huang, J. Zhou, Iron and Steel 41 (2006) No. 8, 37–40.

    Google Scholar 

  4. L.C. Xiu, J.C. Gao, Z.H. Zhao, Steelmaking 23 (2007) No. 4, 25–28.

    Google Scholar 

  5. C.Z. Yang, G. Wei, J.H. Liu, J.T. Song, Steelmaking 28 (2012) No. 3, 1–6, 10.

  6. K. Sasaki, Y. Ohkita, T. Ikeda, T. Okazaki, T. Matsuo, A. Kawami, Tetsu-to-Hagane 63 (1977) 1801–1808.

    Google Scholar 

  7. T. Ikeda, T. Matsuo, Trans. ISIJ 22 (1982) 495–503.

    Google Scholar 

  8. K. Marukawa, S. Anezaki, I. Yamazaki, Tetsu-to-Hagane 69 (1983) 1856–1862.

    Google Scholar 

  9. N. Masumitsu, K. Ito, R.J. Fruehan, Metall. Trans. B 19 (1988) 643–648.

    Google Scholar 

  10. C. Nassaralla, R.J. Fruehan, D.J. Min, Metall. Trans. B 22 (1991) 33–38.

    Google Scholar 

  11. G.Q. Li, T. Hamano, F. Tsukihashi, ISIJ Int. 45 (2005) 12–18.

    Google Scholar 

  12. R. Inoue, H. Suito, ISIJ Int. 46 (2006) 188–194.

    Google Scholar 

  13. S. Basu, A.K. Lahiri, S. Seetharaman, J. Halder, ISIJ Int. 47 (2007) 766–768.

    Google Scholar 

  14. Y.C. Lü, X.H. Wang, G.S. Zhu, H.B. Li, Chinese Journal of Engineering 38 (2016) 335–341.

    Google Scholar 

  15. W. Wu, S.F. Dai, Y. Liu, J. Iron Steel Res. Int. 24 (2017) 908–915.

    Google Scholar 

  16. X.F. Bai, C. Zhuo, B. Huang, Z.C. Zhao, Y.H. Sun, X.T. Liang, L. Chen, J. Chen, Chinese Journal of Engineering 40 (2018) S1, 85–92.

    Google Scholar 

  17. S.Y. Kitamura, K. Yonezawa, Y. Ogawa, N. Sasaki, Ironmak. Steelmak. 29 (2002) 121–124.

    Google Scholar 

  18. N. Sasaki, Y. Ogawa, S. Mukawa, K.I. Miyamoto, Nippon Steel Tech. Rep. (2013) No. 104, 26–32.

  19. C.J. Shi, J.S. Qian, Resour. Conserv. Recycl. 29 (2000) 195–207.

    Google Scholar 

  20. N. Ortiz, M.A.F. Pires, J.C. Bressiani, Waste Manage. (Oxford) 21 (2001) 631–635.

    Google Scholar 

  21. P. Chaurand, J. Rose, V. Briois, L. Olivi, J.L. Hazemann, O. Proux, J. Domas, J.Y. Bottero, J. Hazard. Mater. 139 (2007) 537–542.

    Google Scholar 

  22. K.D. Xu, L.J. Xiao, Y. Gan, L. Liu, X.H. Wang, Acta Metall. Sin. 48 (2012) 1–10.

    Google Scholar 

  23. J.X. Li, X.D. Hao, S.T. Qiu, P. Zhao, J. Univ. Sci. Technol. Beijing 31 (2009) 970–973.

    Google Scholar 

  24. T. Emi, ISIJ Int. 55 (2015) 36–66.

    Google Scholar 

  25. Y. Ogawa, M. Yano, S. Kitamura, H. Hirata, Tetsu-to-Hagane 87 (2001) 21–28.

    Google Scholar 

  26. K. Yoshida, Y. Tozaki, T. Matsuo, N. Aoki, Y. Yoshiyama, Steel Times Int. 14 (1990) 20.

    Google Scholar 

  27. K. Yoshida, I. Yamazaki, Y. Tozaki, N. Aoki, J.I. Yoshiyama, K. Arai, Tetsu-to-Hagane 76 (1990) 1817–1822.

    Google Scholar 

  28. K. Shiwaku, S. Kawasaki, A. Kamimori, M. Aoki, K. Hajika, Tetsu-to-Hagane 73 (1987) 1567–1574.

    Google Scholar 

  29. K. Kato, Y. Akabayashi, M. Kojima, Y. Nakamura, K. Kojima, S. Onoyama, CAMP-ISIJ 4 (1991) 1153.

    Google Scholar 

  30. K. Kato, H. Yamauchi, S. Onoyama, M. Oita, T. Sado, M. Ina, CAMP-ISIJ 4 (1991) 1154.

    Google Scholar 

  31. X.F. Jiang, Z.P. Chen, Z.X. Lu, G. Zhang, Z.M. Zhong, Rev. Métall. 104 (2007) 29–34.

    Google Scholar 

  32. W. Wu, H.D. Meng, L. Liu, J. Iron Steel Res. Int. 20 (2013) No. 6, 7–12.

    Google Scholar 

  33. X.H. Wang, J.Z. Li, F.G. Liu, Steelmaking 33 (2017) No. 1, 1–11, 55.

  34. T. Matsuo, I. Yamazaki, S. Masuda, K. Yoshida, A. Mori, S. Pukagawa, in: T. Matsuo, S. Fukagawa, T. Ikeda, S. Masuda, G.P. Schneider (Eds.), Proceedings of 73rd Steelmaking Conference, ISS, Warrendale, PA, USA, 1990, pp. 115–121.

  35. X.W. Su, H. Cui, B.L. Zhang, Y.Q. Liu, L. Luo, C.X. Ji, Journal of Chongqing University 41 (2018) 56–65.

    Google Scholar 

  36. M.F. Xu, Y.T. Gao, A.B. Jin, Y. Zhou, L.J. Guo, G.S. Liu, Chinese Journal of Engineering 38 (2016) 1059–1068.

    Google Scholar 

  37. N. Sasaki, K. Naito, Y. Demoto, S. Kitamura, Tetsu-to-Hagane 88 (2002) 300–305.

    Google Scholar 

  38. X. Yang, H. Matsuura, F. Tsukihashi, ISIJ Int. 49 (2009) 1298–1307.

    Google Scholar 

  39. H. Matsuura, T. Hamano, M. Zhong, X. Gao, X. Yang, F. Tsukihashi, JOM 66 (2014) 1572–1580.

    Google Scholar 

  40. Y.C. Lü, X.H. Wang, D.P. Qin, Y. Liu, H.B. Wang, Iron and Steel 53 (2018) No. 6, 31–38.

    Google Scholar 

  41. H. Suito, R. Inoue, ISIJ Int. 35 (1995) 258–265.

    Google Scholar 

  42. Y. Ogasawara, Y. Miki, Y. Uchida, N. Kikuchi, ISIJ Int. 53 (2013) 1786–1793.

    Google Scholar 

  43. H. Suito, R. Inoue, Trans. ISIJ 70 (1984) 186–193.

    Google Scholar 

  44. H.G. Hadrys, M.G. Frohberg, Metall. Trans. 1 (1970) 1867.

    Google Scholar 

  45. C.L. Zhao, Optimizing study of De-P steelmaking process in Shougang Jingtang, University of Science and Technology Beijing, Beijing, China, 2016.

    Google Scholar 

  46. C.W. Bale, E. Belisle, P. Chartrand, S.A. Decterov, G. Eriksson, K. Hack, I.H. Jung, Y.B. Kang, J. Melancon, A.D. Pelton, C. Robelin, S. Petersen, Calphad 33 (2009) 295–311.

    Google Scholar 

  47. Z.C. Zhao, Y.H. Sun, L. Luo, Z.L. Zhao, Steelmaking 31 (2015) No. 6, 13–16, 22.

Download references

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (51574026).

Author information

Authors and Affiliations

  1. Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing, 100083, China

    Xue-feng Bai & Yan-hui Sun

  2. Shougang Jingtang United Iron & Steel Co., Ltd., Tangshan, 063200, Hebei, China

    Lei Luo & Chang-liang Zhao

Authors
  1. Xue-feng Bai
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yan-hui Sun
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Lei Luo
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Chang-liang Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Yan-hui Sun.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Bai, Xf., Sun, Yh., Luo, L. et al. Effect of direct charging of hot recycled slag on hot metal pretreatment dephosphorization in a dephosphorization furnace. J. Iron Steel Res. Int. 27, 148–159 (2020). https://doi.org/10.1007/s42243-019-00296-w

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s42243-019-00296-w

Keywords

Search

Navigation