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Dissolution Kinetics of Titanium in Carbon-Saturated Iron

  • Leizhang Gao
  • Tongxiang Ma
  • Zhiming Yan
  • Meilong HuEmail author
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Adding titanium ore in the blast furnace is an efficient method to prolong its hearth life. The content of titanium is important for prolonging blast furnace life. In this study, the dissolution kinetics of titanium in carbon-saturated iron was studied. The carbon-saturated pig iron was heated to 1200, 1250 and 1300 °C, respectively, and then an appropriate amount of titanium-iron alloy powder was added. After a certain period of time, a quartz tube was used to take out the samples from the molten iron and the solubility of titanium was measured by an inductive coupled plasma emission spectrometer (ICP). By fitting the experimental results with different solid–liquid reaction kinetics models, the limiting step of the whole process was determined. The results show that in the process of dissolution the mass diffusion is the limiting step. According to the Arrhenius empirical equation, the activation energy of the dissolution is about 450.96 kJ/mol.

Keywords

Dissolution kinetics Carbon-saturated pig iron Activation energy 

Notes

Acknowledgements

The authors are especially grateful to the project 51674054 supported by National Natural Science Foundation of China and supported by the National Key R&D Program of China (2017YFB0603801).

References

  1. 1.
    Nouchi T, Sato M, Takeda K (2006) Extension of blast furnace campaign at JFE steel. In: 34 th McMaster University symposium on iron and steelmaking, Hamilton, Ontario, Canada, 24–38 May 2006Google Scholar
  2. 2.
    Rossi AJ (1890) Titanium in blast furnaces. J Am Chem Soc 12(4):91–117CrossRefGoogle Scholar
  3. 3.
    Bachman FE (1914) The use of titaniferous ore in the blast furnace. American Iron and Steel Institute Year Book, pp 371–419Google Scholar
  4. 4.
    Narita K, Maekawa M, Onoye T (1977) Formation of titanium compounds, so-called titanium-bear, in the blast furnace hearth. ISIJ 62(8):525–534Google Scholar
  5. 5.
    Hisada K, Jyomoto Y, Etou B (1964) 25 On the properties of Ti-bears sampled from the blast furnace hearth. In: 68th grand lecture meeting of the iron and steel institute of Japan, Tetsu, Hagane, Japan, pp 1616–1619, September 1964Google Scholar
  6. 6.
    Ollno A, Ross HU (1963) Liquidus-temperature measurements in the lime-titania-alumina-silica system. Can Metall Q 2(3):243–258CrossRefGoogle Scholar
  7. 7.
    Ohno A, Ross HU (1963) Optimum slag composition for the blast-furnace smelting of titaniferous ores. Can Metall Q 2(3):259–279CrossRefGoogle Scholar
  8. 8.
    Ohno A, Ross HU (1964) The reduction of titanium dioxide in titaniferous slags. Can Metall Q 3(3):257–267CrossRefGoogle Scholar
  9. 9.
    Street S, Copeland C, Worral E (2014) Curse to cure: the utilization of titanium-bearing products in blast furnace ironmaking. Iron Steel Technol 11(3):71–87Google Scholar
  10. 10.
    Li Y, Fruehan RJ (2001) Thermodynamics of TiCN and TiC in Fe-Csat melts. Metall Mater Trans B 32(6):1203–1205CrossRefGoogle Scholar
  11. 11.
    Morizane Y, Ozturk B, Fruehan RJ (1999) Thermodynamics of TiOx in blast furnace-type slags. Metall Mater Trans B 30(1):29–43CrossRefGoogle Scholar
  12. 12.
    Zhao YF (2014) The impact of titanium on skull formation in the blast furnace hearth. Iron Steel Technol 11(3):95–103Google Scholar
  13. 13.
    Argyropoulos SA, Guthrie RIL (1984) The dissolution of titanium in liquid steel. Metall Trans B 15(1):47–58CrossRefGoogle Scholar
  14. 14.
    Morales GV, Capretto ME, Fuentes LM (2000) Dissolution kinetics of hydroboracite in water saturated with carbon dioxide. Hydrometallurgy 58(2):127–133CrossRefGoogle Scholar
  15. 15.
    Lu WH, Yin ZL, Ding ZY (2017) Dissolution kinetics of copper from multi-metal copper alloy roasted in oxygen. J Central South Univ 24(2):335–340CrossRefGoogle Scholar
  16. 16.
    Keng WU, Zhao Y, Qian W (2002) Foam behavior parameter in foaming process originated from reducing TiO2 in synthetic blast furnace slag. Chin J Nonferrous Metals 12(4):817–821Google Scholar
  17. 17.
    Xu ZM, Huang RQ, Tang ZG (2005) Sili-cate mineral dissolution kinetics and the significance of research on landslide. Chin J Rock Mechan Eng 24(9):1480–1491Google Scholar
  18. 18.
    Hua QX, Han YW, Tang JW (2016) Study on dissolution kinetics of single superphosphate granules in water. Phosphate Compd Fertil 31(5):10–12Google Scholar
  19. 19.
    Aracena A, Sanino A, Jerez O (2018) Dissolution kinetics of molybdite in KOH media at different temperatures. Trans Nonferrous Metals Soc China 28(1):177–185CrossRefGoogle Scholar
  20. 20.
    Juan M, Rodrtguez DM, Teresa SM (2009) Study of the best designs for modifications of the Arrhenius equation. Chemometr Intell Lab Syst 95(2):199–208CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Leizhang Gao
    • 1
  • Tongxiang Ma
    • 1
  • Zhiming Yan
    • 1
  • Meilong Hu
    • 1
    Email author
  1. 1.College of Materials Science and EngineeringChongqing UniversityChongqingChina

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