Phase Equilibria in the TiO{sub 2}-Rich Part of the TiO{sub 2}-CaO-SiO{sub 2}-10 Wt Pct Al{sub 2}O{sub 3}-5 Wt Pct MgO System at 1773 K

Journal Article · Fri Feb 15 04:00:00 EST 2019 · Metallurgical and Materials Transactions. B, Process Metallurgy and Materials Processing Science

DOI:https://doi.org/10.1007/S11663-018-1441-2· OSTI ID:22933606

Wang, Zhen; Zhu, Qingshan; Sun, Haoyan ^[1]

---

1. Chinese Academy of Sciences, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering (China)

The phase equilibria of the TiO{sub 2}-CaO-SiO{sub 2}-10 wt pct Al{sub 2}O{sub 3}-5 wt pct MgO system in the TiO{sub 2}-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 TiO{sub 2}-CaO-SiO{sub 2}-10 wt pct Al{sub 2}O{sub 3}-5 wt pct MgO system in the TiO{sub 2}-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.

• OSTI ID: 22933606
• Journal Information: Metallurgical and Materials Transactions. B, Process Metallurgy and Materials Processing Science, Journal Name: Metallurgical and Materials Transactions. B, Process Metallurgy and Materials Processing Science Journal Issue: 1 Vol. 50; ISSN 1073-5615; ISSN MTBSEO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
CALCIUM OXIDES
CRYSTALLIZATION
ELECTRON MICROPROBE ANALYSIS
LIQUIDS
MAGNESIUM OXIDES
MAGNETITE
PHASE DIAGRAMS
QUENCHING
SILICON OXIDES
SMELTING
SOLIDS
TEMPERATURE RANGE 0400-1000 K
TITANIUM
TITANIUM OXIDES
VANADIUM