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The influence of the Cr2O3Cr2O3 content on the surface tensionSurface tension of CaO–SiO2SiO2–9.25wt.%MgO–14.7wt.%Al2O3Al2O3–22wt.%TiO2TiO2–Cr2O3Cr2O3 slag system was investigated in the temperatureTemperature range of 1450–1550 ℃ using the ring method. The mechanism of the changes in surface tensionSurface tension with different Cr2O3Cr2O3 contents in slag was analyzed from the perspective of model and ion theory in the melts. Increasing the Cr2O3Cr2O3 content from 0 to 3 wt.% caused an increase in the surface tensionSurface tension for the reason that the surface tensionSurface tension of Cr2O3Cr2O3 is the largest and that of SiO2SiO2 is the smallest in the components of the slag. Another reason is that the anions are repelled to the surface layer of the slag and adsorbed. The surface tensionSurface tension decreased with increasing temperatureTemperature. This is because the decrease of interaction forceInteraction force between the ions and the reduction of the bulk phase densityDensity between the two phases adjacent to the surface layer.

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Investigation of the Effect of Cr2O3 Content on the Surface Tension of Chromium-Containing High-Titanium Blast Furnace Slag

  • 会议论文

  • 发表日期：

    2025年

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  • Weichao Zheng,
  • Jiawen Chen,
  • Jingjing Song,
  • Zhenyun Tian,
  • Guibao Qiu

摘要

The influence of the Cr2O3Cr2O3 content on the surface tensionSurface tension of CaO–SiO2SiO2–9.25wt.%MgO–14.7wt.%Al2O3Al2O3–22wt.%TiO2TiO2–Cr2O3Cr2O3 slag system was investigated in the temperatureTemperature range of 1450–1550 ℃ using the ring method. The mechanism of the changes in surface tensionSurface tension with different Cr2O3Cr2O3 contents in slag was analyzed from the perspective of model and ion theory in the melts. Increasing the Cr2O3Cr2O3 content from 0 to 3 wt.% caused an increase in the surface tensionSurface tension for the reason that the surface tensionSurface tension of Cr2O3Cr2O3 is the largest and that of SiO2SiO2 is the smallest in the components of the slag. Another reason is that the anions are repelled to the surface layer of the slag and adsorbed. The surface tensionSurface tension decreased with increasing temperatureTemperature. This is because the decrease of interaction forceInteraction force between the ions and the reduction of the bulk phase densityDensity between the two phases adjacent to the surface layer.