Melting performance of CaO-SiO2-Al2O3-MgO-TiO2 slag system

XU Ran; SONG Bo; MAO Jing-hong

doi:10.13374/j.issn1001-053x.2010.11.009

Volume 32 Issue 11

Aug. 2021

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XU Ran, SONG Bo, MAO Jing-hong. Melting performance of CaO-SiO2-Al2O3-MgO-TiO2 slag system[J]. Chinese Journal of Engineering, 2010, 32(11): 1422-1427. doi: 10.13374/j.issn1001-053x.2010.11.009

Citation:

XU Ran, SONG Bo, MAO Jing-hong. Melting performance of CaO-SiO₂-Al₂O₃-MgO-TiO₂ slag system[J]. Chinese Journal of Engineering, 2010, 32(11): 1422-1427. doi: 10.13374/j.issn1001-053x.2010.11.009

XU Ran, SONG Bo, MAO Jing-hong. Melting performance of CaO-SiO2-Al2O3-MgO-TiO2 slag system[J]. Chinese Journal of Engineering, 2010, 32(11): 1422-1427. doi: 10.13374/j.issn1001-053x.2010.11.009

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Melting performance of CaO-SiO₂-Al₂O₃-MgO-TiO₂ slag system

doi: 10.13374/j.issn1001-053x.2010.11.009

1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Key Lab of Ecological&Recycling Metallurgy(Ministry of Education of China), University of Science and Technology Beijing, Beijing 100083, China;
3. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2009-12-20

Abstract

Abstract

The melting point of titanium-containing steel slag was theoretically calculated using the Phase Diagram module and the Equilib module of thermodynamic calculation software FactSage,and the calculation result was verified by melting experiments.It is shown that,for a slag system with the basicity below 1.5,when the mass fraction of TiO₂ is less than 13%,TiO₂ has little effect on the melting point of the slag,and while the mass fraction of TiO₂ is over 13%,TiO₂ can increase the melting point.For a slag system whose basicity is over 1.5 and mass fraction of Al₂O₃ is between 25% and 35%,when the mass fraction of TiO₂ is more than 1%,TiO₂ can significantly increase the melting point of the slag.
- slag,
- titanium dioxide,
- melting point,
- thermodynamic calculation