Scholarlink

<p>In this study, the effect of basicity on the break temperature and crystallization behavior of Cr-containing molten titanium slag was investigated through thermodynamic calculation and experiment. The type and content of crystalline phase were calculated by FactSage thermodynamic software. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) combined with energy-dispersive spectrometry (EDS) were employed to analyze the composition and morphology of crystalline phase. The thermodynamic calculation indicated that at a basicity of 0.5, the rutile phase precipitated in the Cr-containing molten titanium slag. However, as the basicity increased, no rutile phase was found in the slag. When the basicity exceeded 0.6, a further increase in basicity did not result in any change to the type of crystalline phase. The final Ti-containing phase evolved progressively from anosovite phase and sphene phase to perovskite phase. As the basicity increased from 0.5 to 0.8, the break temperature decreased from 1483°C to 1443°C, and the viscosity of slag corresponding to the break temperature decreased from 0.697&#xa0;Pa∙s to 0.416&#xa0;Pa∙s. Except for a basicity of 0.6, where the crystalline phase of slag at the break temperature was titanium-rich phase, the crystalline phase under other basicity conditions at the break temperature was spinel phase.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Investigation of Basicity on the Break Temperature and Crystallization Behavior of Cr-Containing Molten Titanium Slag

  • 期刊论文

  • 发表日期：

    2025年5月28日

查看全文
  • Ruiqi Zeng,
  • Nan Wang,
  • Wei Li

摘要

In this study, the effect of basicity on the break temperature and crystallization behavior of Cr-containing molten titanium slag was investigated through thermodynamic calculation and experiment. The type and content of crystalline phase were calculated by FactSage thermodynamic software. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) combined with energy-dispersive spectrometry (EDS) were employed to analyze the composition and morphology of crystalline phase. The thermodynamic calculation indicated that at a basicity of 0.5, the rutile phase precipitated in the Cr-containing molten titanium slag. However, as the basicity increased, no rutile phase was found in the slag. When the basicity exceeded 0.6, a further increase in basicity did not result in any change to the type of crystalline phase. The final Ti-containing phase evolved progressively from anosovite phase and sphene phase to perovskite phase. As the basicity increased from 0.5 to 0.8, the break temperature decreased from 1483°C to 1443°C, and the viscosity of slag corresponding to the break temperature decreased from 0.697 Pa∙s to 0.416 Pa∙s. Except for a basicity of 0.6, where the crystalline phase of slag at the break temperature was titanium-rich phase, the crystalline phase under other basicity conditions at the break temperature was spinel phase.