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REWAS 2019 pp 391-399 | Cite as

Experimental Study on Phosphorus Vaporization for Converter Slag by SiC Reduction

  • Y. K. Xue
  • S. H. WangEmail author
  • D. G. Zhao
  • C. X. Li
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

The phosphorus vaporization experiment of converter slag was carried out in laboratory with SiC as reducing agent. The results show that 2CaO·SiO2 and 3CaO·SiO2 are the main phases in the final slag. After phosphorus vaporization operation, the dendritic Fe phase and a large number of C phases were distributed in the phosphorus vaporization slag excepted the above phase. The experimental result shows that phosphorus vaporization rate decreased with increasing the basicity in the slag. Phosphorus vaporization rate first increased and then decreased with increasing FeO in the slag and reached the maximum when the content of FeO was 20–25%. Phosphorus vaporization rate showed an upward trend with the increase of nitrogen flow rate and tended to be slow when the nitrogen flow rate was 0.4 m3/h. Phosphorus vaporization rate increased with increasing the reaction temperature, and the growth rate became gentle when the temperature was more than 1600 °C. Excessive addition of SiC will not obviously increase the phosphorus vaporization rate.

Keywords

Converter Final slag Phosphorus vaporization 

References

  1. 1.
    Ogawa Y, Yano M, Kitamura S, Hirata H (2001) Testu-to-Hagane 87:21–23CrossRefGoogle Scholar
  2. 2.
    Mao MF, Cui YY, Wang DY, Min Y, Liu CJ (2013) J Iron Steel Res Int 20:17Google Scholar
  3. 3.
    Iwasaki M, Matsuo M (2011) Nippon Steel Technical Report 391:88–102Google Scholar
  4. 4.
    Jung SM, Do YJ (2006) Steel Res Int 77:312–317CrossRefGoogle Scholar
  5. 5.
    Jung SM, Do YJ, Choi JH (2006) Steel Res Int 77:305–309Google Scholar
  6. 6.
    Turkdogan ET (2000) ISIJ Int 40:964–966CrossRefGoogle Scholar
  7. 7.
    Li GQ, Zhang F, Zhang L, Sui ZT (2003) J Mater Metall 03:167–170Google Scholar
  8. 8.
    Wu XR, Nan JN, Chen RH (2010) J Anhui Univ Technol (Natl Sci) 27:24–27Google Scholar
  9. 9.
    Wang N, Liang ZG, Chen M, Zou ZS (2011) J Northeast Univ (Natl Sci) 06:814–818Google Scholar
  10. 10.
    Wang YC, Li HY, Li SW, Luo GP (2016) J Iron Steel Res 06:31–35Google Scholar
  11. 11.
    Wu M (2009) Steel Mak 02:16–19Google Scholar
  12. 12.
    Li CX, Li H, Zhou B (2015) China Metall 25:28–31CrossRefGoogle Scholar
  13. 13.
    Ito M (1981) Iron Steel 67:126–129Google Scholar
  14. 14.
    Wu QF, Bao YP (2014) J Wuhan Univ Sci Technol (Natl Sci Ed) 06:411Google Scholar
  15. 15.
    Wang SH, Wu YQ, Liu XS, Xu ZR (2008) IRON STEEL 02:31–35Google Scholar

Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Y. K. Xue
    • 1
    • 2
  • S. H. Wang
    • 1
    • 2
    Email author
  • D. G. Zhao
    • 1
    • 2
  • C. X. Li
    • 1
    • 2
  1. 1.College of Metallurgy and EnergyNorth China University of Science and TechnologyTangshanChina
  2. 2.Tangshan City Special Metallurgy and Material Preparation LaboratoryTangshanChina

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