The Reaction Behavior of 2CaO·SiO<sub>2</sub> with CaO–SiO<sub>2</sub>–FeO–P<sub>2</sub>O<sub>5</sub> Slag

It is important to clarify the reaction behavior of 2CaO·SiO<sub>2</sub> (C<sub>2</sub>S) during hot metal dephosphorization. In this study, C<sub>2</sub>S was prepared and added to steel slag to investigate the reaction of C<sub>2</sub>S particles wit...

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Main Authors: Yansong Song, Xiaojun Hu, Kuochih Chou
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/15/19/6594
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author Yansong Song
Xiaojun Hu
Kuochih Chou
author_facet Yansong Song
Xiaojun Hu
Kuochih Chou
author_sort Yansong Song
collection DOAJ
description It is important to clarify the reaction behavior of 2CaO·SiO<sub>2</sub> (C<sub>2</sub>S) during hot metal dephosphorization. In this study, C<sub>2</sub>S was prepared and added to steel slag to investigate the reaction of C<sub>2</sub>S particles with CaO–SiO<sub>2</sub>–FeO–P<sub>2</sub>O<sub>5</sub> slag at 1723 K. The diffusion coefficient of phosphorus in C<sub>2</sub>S was calculated. In addition, the influence of the addition of BaO to C<sub>2</sub>S was discussed. The results show that the diffusion coefficient of phosphorus in C<sub>2</sub>S is 9.23 × 10<sup>−14</sup> m<sup>2</sup>·s<sup>−1</sup>. The Ca in C<sub>2</sub>S can be replaced by Ba. Small particles in the solid solution were easily generated from the C<sub>2</sub>S body by the addition of BaO, which is beneficial for improving the phosphorus partition between the C<sub>2</sub>S solid phase and the liquid phase of the slag.
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spelling doaj.art-2c8f2e7dc1e74938b499107e865c7bea2023-11-23T20:53:27ZengMDPI AGMaterials1996-19442022-09-011519659410.3390/ma15196594The Reaction Behavior of 2CaO·SiO<sub>2</sub> with CaO–SiO<sub>2</sub>–FeO–P<sub>2</sub>O<sub>5</sub> SlagYansong Song0Xiaojun Hu1Kuochih Chou2State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaIt is important to clarify the reaction behavior of 2CaO·SiO<sub>2</sub> (C<sub>2</sub>S) during hot metal dephosphorization. In this study, C<sub>2</sub>S was prepared and added to steel slag to investigate the reaction of C<sub>2</sub>S particles with CaO–SiO<sub>2</sub>–FeO–P<sub>2</sub>O<sub>5</sub> slag at 1723 K. The diffusion coefficient of phosphorus in C<sub>2</sub>S was calculated. In addition, the influence of the addition of BaO to C<sub>2</sub>S was discussed. The results show that the diffusion coefficient of phosphorus in C<sub>2</sub>S is 9.23 × 10<sup>−14</sup> m<sup>2</sup>·s<sup>−1</sup>. The Ca in C<sub>2</sub>S can be replaced by Ba. Small particles in the solid solution were easily generated from the C<sub>2</sub>S body by the addition of BaO, which is beneficial for improving the phosphorus partition between the C<sub>2</sub>S solid phase and the liquid phase of the slag.https://www.mdpi.com/1996-1944/15/19/6594dephosphorization2CaO·SiO<sub>2</sub>solid solutionslag
spellingShingle Yansong Song
Xiaojun Hu
Kuochih Chou
The Reaction Behavior of 2CaO·SiO<sub>2</sub> with CaO–SiO<sub>2</sub>–FeO–P<sub>2</sub>O<sub>5</sub> Slag
Materials
dephosphorization
2CaO·SiO<sub>2</sub>
solid solution
slag
title The Reaction Behavior of 2CaO·SiO<sub>2</sub> with CaO–SiO<sub>2</sub>–FeO–P<sub>2</sub>O<sub>5</sub> Slag
title_full The Reaction Behavior of 2CaO·SiO<sub>2</sub> with CaO–SiO<sub>2</sub>–FeO–P<sub>2</sub>O<sub>5</sub> Slag
title_fullStr The Reaction Behavior of 2CaO·SiO<sub>2</sub> with CaO–SiO<sub>2</sub>–FeO–P<sub>2</sub>O<sub>5</sub> Slag
title_full_unstemmed The Reaction Behavior of 2CaO·SiO<sub>2</sub> with CaO–SiO<sub>2</sub>–FeO–P<sub>2</sub>O<sub>5</sub> Slag
title_short The Reaction Behavior of 2CaO·SiO<sub>2</sub> with CaO–SiO<sub>2</sub>–FeO–P<sub>2</sub>O<sub>5</sub> Slag
title_sort reaction behavior of 2cao·sio sub 2 sub with cao sio sub 2 sub feo p sub 2 sub o sub 5 sub slag
topic dephosphorization
2CaO·SiO<sub>2</sub>
solid solution
slag
url https://www.mdpi.com/1996-1944/15/19/6594
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