Advertisement

Thermodynamic Analysis and Reduction of Anosovite with Methane at Low Temperature

  • Run Zhang
  • Gangqiang Fan
  • Mingbo Song
  • Chaowen Tan
  • Jie DangEmail author
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

The utilization of titanium resource in titanium-containing blast furnace slag (TiO2 about 23 wt%) is an unsolved problem, which is caused by its complex mineralogical composition. The titanium oxide (TiO2) and other metal oxides contained in titanium-bearing blast furnace slag can be precipitated out in the form of anosovite (M3O5), which is the main titanium-containing phase in the slag, by adjusting the slag composition and cooling condition. In this study, thermodynamic calculation was performed to analyze the reduction of anosovite with methane. It was found that all anosovite could be reduced to titanium oxycarbide (TiCxOy) with methane at a low temperature, while the increase of temperature was beneficial to the formation of TiCxOy. The experimental results were basically consistent with the thermodynamic results. The results indicated that the low-temperature reduction of titanium-containing blast furnace slag by methane was feasible, which provided a possible way to use titanium-bearing blast furnace slag.

Keywords

Titanium-bearing blast furnace slag Anosovite Methane 

Notes

Acknowledgements

Thanks are given to the financial support from the National Natural Science Foundation of China (51,674,053, 51,604,046), National Key R&D Program of China (2017YFB0603800), Fundamental and Frontier Research Project of Chongqing (cstc2017jcyjAX0322), Graduate Scientific Research and Innovation Foundation of Chongqing (CYB19003), Young Elite Scientists Sponsorship Program by CAST (2018QNRC001), the Venture & Innovation Support Program for Chongqing Overseas Returnees (cx2018055), and Undergraduate Scientific Research and Innovation Foundation of Chongqing (S201910611297).

References

  1. 1.
    Zhigang Zak F, Scott M, Jun G et al (2013) A new, energy-efficient chemical pathway for extracting ti metal from ti minerals. J Am Chem Soc 135(49):18248CrossRefGoogle Scholar
  2. 2.
    Leyens, C, Peters, M (2003) Titanium and titanium alloys: fundamentals and applicationsGoogle Scholar
  3. 3.
    Luo JH, Qiu KH, Qiu YC et al (2013) Studies of mineralogical characteristics on vanadium titanium magnetite in hongge area, panzhihua, sichuan, china. Adv Mater Res 813:292–297CrossRefGoogle Scholar
  4. 4.
    Qiu ST, Zhang MB, Jian-Xin LI et al (2016) Recent progress and prospective of comprehensive utilization of Ti-bearing blast furnace slag. Iron Steel 51(7):1–8Google Scholar
  5. 5.
    Li J, Zhang Z, Liu L et al (2013) Influence of basicity and TiO2 content on the precipitation behavior of the Ti-bearing blast furnace slags. ISIJ Int 53(10):1696–1703CrossRefGoogle Scholar
  6. 6.
    Xu, R, Zhang, J, Chang, Z et al (2017) Research progress of selective enrichment and precipitation of titanium in high titanium blast furnace slag. Iron Steel Van TitGoogle Scholar
  7. 7.
    Fan G, Jie D, Lv X et al (2018) Effect of basicity on the crystallization behavior of TiO2-CaO-SiO2 ternary system slag. CrystEngComm 20(36):5422–5431CrossRefGoogle Scholar
  8. 8.
    Liu B, Zhang Y, Su Z et al (2017) Thermodynamic analysis and reduction of MnO2 by methane–hydrogen gas mixture. JOM 69(9):1669–1675CrossRefGoogle Scholar
  9. 9.
    Cetinkaya S, Eroglu S (2015) Thermodynamic analysis and reduction of tungsten trioxide using methane. Int J Refract Met Hard Mater 51:137–140CrossRefGoogle Scholar
  10. 10.
    Zhang J, Ostrovski O, Suzuki K (2000) Effect of temperature on cementite formation by reaction of iron ore with H2–CH4–Ar gas. Metall Mater Trans B 31(5):1139–1142CrossRefGoogle Scholar
  11. 11.
    Anacleto N, Ostrovski O (2004) Solid-state reduction of chromium oxide by methane-containing gas. Metall Mater Trans B 35(4):609–615CrossRefGoogle Scholar
  12. 12.
    Zhang G, Ostrovski O (2000) Reduction of titania by methane-hydrogen-argon gas mixture. Metall Mater Trans B 31(1):129–139CrossRefGoogle Scholar
  13. 13.
    Dang J, Fatollahi-Fard F, Pistorius PC et al (2017) Synthesis of titanium oxycarbide from concentrates of natural ilmenite (weathered and unweathered) and natural rutile, using a methane-hydrogen gas mixture. Metall Mater Trans B 48:1–7CrossRefGoogle Scholar
  14. 14.
    Dang J, Fatollahi-Fard F, Pistorius PC et al (2018) Synthesis of titanium oxycarbide from titanium slag by methane-containing gas. Metall Mater Trans B 49(1):123–131CrossRefGoogle Scholar
  15. 15.
    Zhang R, Dang J, Liu D et al (2019) Reduction of perovskite-geikielite by methane–hydrogen gas mixture: Thermodynamic analysis and experimental results. Total Environ, Sci.  https://doi.org/10.1016/j.scitotenv.2019.134355CrossRefGoogle Scholar
  16. 16.
    Cao Z, Xie W, Jung IH et al (2015) Critical evaluation and thermodynamic optimization of the Ti–C–O system and its applications to carbothermic TiO2 reduction process. Metall Mater Trans B 46(4):1782–1801CrossRefGoogle Scholar
  17. 17.
    Zhang R, Liu D, Fan G et al (2019) Thermodynamic and experimental study on the reduction and carbonization of TiO-2 through gas-solid reaction. Int J Energy Res 43(9):4253–4263CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society 2020

Authors and Affiliations

  • Run Zhang
    • 1
  • Gangqiang Fan
    • 1
  • Mingbo Song
    • 1
  • Chaowen Tan
    • 1
  • Jie Dang
    • 1
    Email author
  1. 1.College of Materials Science and EngineeringChongqing UniversityChongqingPeople’s Republic of China

Personalised recommendations