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Effect of TiO2 on the Viscous Behaviour of the CaO–SiO2–14 Mass% Al2O3–8 Mass% MgO–TiO2 Slag

  • Zhengde Pang
  • Yuyang Jiang
  • Xuewei LvEmail author
  • Zhiming Yan
  • Wenchao He
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

In the present work, the effect of TiO2 on the viscosity and the free running temperature of the CaO–SiO2–Al2O3–MgO–TiO2 slag system were studied. At fixed CaO/SiO2 ratio of 1.1, 14 mass pct Al2O3 and 8 mass pct MgO, the viscosity decreases with an increase in TiO2 content between 20 and 30 mass pct due to depolymerization of slag structure, which means that TiO2 behaves as a network modifier. The free running temperature decreases with the increase of TiO2 content. The change of the apparent activation energy is in accordance with the change of viscosity. Five different viscosity models and FactSage software were employed to predict the viscosity. Yan’s model agrees well with experimental data.

Keywords

TiO2 Viscosity Free running temperature Viscosity models 

Notes

Acknowledgements

This study was supported by the Fundamental Research Funds for the Central Universities (Grant No. 2018CDQYCL0026) and the Fundamental Research Funds for the Central Universities (2018CDPTCG0001/32).

References

  1. 1.
    Zhang G, Chou K, Zhang J (2014) Influence of TiO2 on viscosity of aluminosilicate melts. Ironmaking Steelmaking 41(1):47–50CrossRefGoogle Scholar
  2. 2.
    Zhang S, Zhang X, Bai C, Wen L, Lv X (2013) Effect of TiO2 content on the structure of CaO–SiO2–TiO2 system by molecular dynamics simulation. Isij Int 53(7):1131–1137Google Scholar
  3. 3.
    Sohn I, Wang W, Matsuura H, Tsukihashi F, Min DJ (2012) Influence of TiO2 on the viscous behavior of calcium silicate melts containing 17 mass% Al2O3 and 10 mass% MgO. ISIJ Int 52(1):2012CrossRefGoogle Scholar
  4. 4.
    Ohno A, Ross H (1963) Can Metall Q 2:259 CrossRefGoogle Scholar
  5. 5.
    Park H, Park JY, Kim GH, Sohn I (2012) Steel Res Int 83:150CrossRefGoogle Scholar
  6. 6.
    Liao JL, Li J, Wang XD, Zhang ZT (2012) Ironmaking Steelmaking 39:133CrossRefGoogle Scholar
  7. 7.
    Sohn I, Wang W, Matsuura H, Tsukihashi F, Min DJ (2012) ISIJ Int 52:158CrossRefGoogle Scholar
  8. 8.
    Yan Z, Lv X, He W, Xu J (2017) ISIJ Int 57(1):31–36CrossRefGoogle Scholar
  9. 9.
    Yan Z, Lv X, Liang D, Zhang J, Bai C (2017) Transition of blast furnace slag from silicates-based to aluminates-based: viscosity. Metall Mater Trans B 48(2):1092–1099CrossRefGoogle Scholar
  10. 10.
    Colf JVD, Howat DD (1979) J S Afr Inst Min Metall 79:255–263Google Scholar
  11. 11.
    Shankar A, Gornerup M, Lahiri AK, Seetharaman S (2007) Ironmaking Steelmaking 34:477–481CrossRefGoogle Scholar
  12. 12.
    Nakamura T, Morinaga K, Yanagase T (1977) Nippon Kinzoku Gakkaishi 4:1300–1304Google Scholar
  13. 13.
    Qiao R, Du H (1988) Influence of TiO2 on the viscosity and free running temperature of the slag containing fluorine. J Iron Steel Res 10:1–4CrossRefGoogle Scholar
  14. 14.
    Liang L, Hao Z, Wen D, Jia X, Deng Y (2017) Study on viscosity and melting temperature of no. 7 blast furnace slag from Baotou steel. Hunan Nonferrous MetalsGoogle Scholar
  15. 15.
    Joo Hyun Park (2013) Structure-property relationship of CaO–MgO–SiO2, slag: quantitative analysis of raman spectra. Metall Mater Trans B 44(4):938–947CrossRefGoogle Scholar
  16. 16.
    Riboud PV, Roux Y, Lucas LD, Gaye H (1981) Fachber Hut-tenpraxis Metall 19:859–869Google Scholar
  17. 17.
    Urbain G, Cambier F, Deletter M, Anseau MR (1981) Trans J Br Ceram Soc 80:139–141Google Scholar
  18. 18.
    Zhang G, Kuochih C (2012) Modelling viscosities of CaO–MgO–Al2O3–SiO2 molten slags. ISIJ Int 52(3):355–362CrossRefGoogle Scholar
  19. 19.
    Mills K (2011) The estimation of slag properties. Southern African PyrometallurgyGoogle Scholar
  20. 20.
    Yan Z, Reddy RG, Lv X, Pang Z, He W (2018) Structure-based viscosity model development for titania aluminosilicate slags. Ironmaking Steelmaking: 1–7 Google Scholar

Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Zhengde Pang
    • 1
  • Yuyang Jiang
    • 1
  • Xuewei Lv
    • 1
    Email author
  • Zhiming Yan
    • 1
  • Wenchao He
    • 1
  1. 1.College of Materials Science and EngineeringChongqing UniversityChongqingChina

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