Metallurgical and Materials Transactions B

, Volume 50, Issue 1, pp 357–366 | Cite as

Phase Equilibria in the TiO2-Rich Part of the TiO2-CaO-SiO2-10 Wt Pct Al2O3-5 Wt Pct MgO System at 1773 K

  • Zhen WangEmail author
  • Qingshan Zhu
  • Haoyan Sun


The phase equilibria of the TiO2-CaO-SiO2-10 wt pct Al2O3-5 wt pct MgO system in the TiO2-rich part were investigated experimentally at 1773 K using the high-temperature equilibration–quenching method and the electron probe microanalyses. Through this study, the isothermal section of the above system was obtained containing one liquidus region and five solid–liquid coexistence regions. The primary phase region of anosovite was not only found, but it is the optimal composition region that is most beneficial to the anosovite selective crystallization and separation. The phase diagram of the TiO2-CaO-SiO2-10 wt pct Al2O3-5 wt pct MgO system in the TiO2-rich corner at 1773 K has been established. The obtained phase diagram can provide reliable reference for the slag adjusting during vanadium-titanium magnetites smelting to make sure the resulting Ti-bearing slag can be upgraded using the selective crystallization and phase separation method.



The authors are grateful to financial support from the National Natural Science Foundation of China (Nos. 51404226 and 21736010).


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© The Minerals, Metals & Materials Society and ASM International 2018

Authors and Affiliations

  1. 1.State Key Laboratory of Multiphase Complex Systems, Institute of Process EngineeringChinese Academy of SciencesBeijingChina
  2. 2.School of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingChina

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