Investigation of sulfide capacity of aluminosilicate slag based on ionic structure considerations

Sunghee Lee; Dong Joon Min

doi:10.1111/jace.15227

Investigation of sulfide capacity of aluminosilicate slag based on ionic structure considerations

Sunghee Lee, Dong Joon Min

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The present study investigated the relationship between sulfide capacity and the average nonbridging oxygens to tetrahedral cations (NBO/T) of CaO-SiO₂-Al₂O₃-MgO slags. The sulfide capacity and NBO/T increase with increasing Al₂O₃/SiO₂ ratio and X_C _aO due to increasing basicity. The inflected dependence of sulfide capacity and NBO/T observed at a eutectic composition. Thermodynamic investigations revealed that the inflected dependence is caused by the effects of mixing enthalpy and entropy components in eutectic composition. Quantitative analysis of sulfide capacity and NBO/T revealed a proportional linear relationship between the two variables. Based on these experimental results, the corresponding structure-property relationships concerning sulfide capacity, viscosity, and stability are discussed in detail.

Original language	English
Pages (from-to)	634-643
Number of pages	10
Journal	Journal of the American Ceramic Society
Volume	101
Issue number	2
DOIs	https://doi.org/10.1111/jace.15227
Publication status	Published - 2018 Feb

Bibliographical note

Publisher Copyright:
© 2017 The American Ceramic Society

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/jace.15227

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abstract = "The present study investigated the relationship between sulfide capacity and the average nonbridging oxygens to tetrahedral cations (NBO/T) of CaO-SiO2-Al2O3-MgO slags. The sulfide capacity and NBO/T increase with increasing Al2O3/SiO2 ratio and XC aO due to increasing basicity. The inflected dependence of sulfide capacity and NBO/T observed at a eutectic composition. Thermodynamic investigations revealed that the inflected dependence is caused by the effects of mixing enthalpy and entropy components in eutectic composition. Quantitative analysis of sulfide capacity and NBO/T revealed a proportional linear relationship between the two variables. Based on these experimental results, the corresponding structure-property relationships concerning sulfide capacity, viscosity, and stability are discussed in detail.",

keywords = "Raman spectroscopy, aluminosilicates, eutectics, slags, sulfides",

author = "Sunghee Lee and Min, {Dong Joon}",

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T1 - Investigation of sulfide capacity of aluminosilicate slag based on ionic structure considerations

AU - Lee, Sunghee

AU - Min, Dong Joon

PY - 2018/2

Y1 - 2018/2

N2 - The present study investigated the relationship between sulfide capacity and the average nonbridging oxygens to tetrahedral cations (NBO/T) of CaO-SiO2-Al2O3-MgO slags. The sulfide capacity and NBO/T increase with increasing Al2O3/SiO2 ratio and XC aO due to increasing basicity. The inflected dependence of sulfide capacity and NBO/T observed at a eutectic composition. Thermodynamic investigations revealed that the inflected dependence is caused by the effects of mixing enthalpy and entropy components in eutectic composition. Quantitative analysis of sulfide capacity and NBO/T revealed a proportional linear relationship between the two variables. Based on these experimental results, the corresponding structure-property relationships concerning sulfide capacity, viscosity, and stability are discussed in detail.

AB - The present study investigated the relationship between sulfide capacity and the average nonbridging oxygens to tetrahedral cations (NBO/T) of CaO-SiO2-Al2O3-MgO slags. The sulfide capacity and NBO/T increase with increasing Al2O3/SiO2 ratio and XC aO due to increasing basicity. The inflected dependence of sulfide capacity and NBO/T observed at a eutectic composition. Thermodynamic investigations revealed that the inflected dependence is caused by the effects of mixing enthalpy and entropy components in eutectic composition. Quantitative analysis of sulfide capacity and NBO/T revealed a proportional linear relationship between the two variables. Based on these experimental results, the corresponding structure-property relationships concerning sulfide capacity, viscosity, and stability are discussed in detail.

KW - Raman spectroscopy

KW - aluminosilicates

KW - eutectics

KW - slags

KW - sulfides

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Investigation of sulfide capacity of aluminosilicate slag based on ionic structure considerations

Abstract

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