Scholarlink

<p>This paper examines the influence of refining fluxes (fluorite, boron oxide, and aluminothermic ferroalloy production slag) on the physicochemical properties of the melts. Examples illustrate the use of CaF<sub>2</sub> to improve the refining properties of slag at metallurgical plants, alongside its associated drawbacks. Several studies examining the replacement of CaF<sub>2</sub> with B<sub>2</sub>O<sub>3</sub> are reviewed, detailing its impact on viscosity, liquidus temperature, melt structure, thermal conductivity, and the degree of steel desulfurization. One alternative fluidizer for refining slags is Al<sub>2</sub>O<sub>3</sub>, which positively influences the fluidity and desulfurization capacity of CaO–SiO<sub>2</sub>-based slags. Experimental heats were conducted using a&#xa0;solid slag mixture containing 58% Al<sub>2</sub>O<sub>3</sub>, 26% CaO, and 0.4% FeO at the ArcelorMittal Temirtau plant. The optimal consumption rate for this mixture was determined to be 0.7–1 kg per ton of steel.</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

Refining fluxes for steel desulfurization

  • 期刊论文

  • 发表日期：

    2026年3月1日

查看全文
  • V. A. Salina,
  • A. S. Vusikhis,
  • L. I. Leont’ev

摘要

This paper examines the influence of refining fluxes (fluorite, boron oxide, and aluminothermic ferroalloy production slag) on the physicochemical properties of the melts. Examples illustrate the use of CaF2 to improve the refining properties of slag at metallurgical plants, alongside its associated drawbacks. Several studies examining the replacement of CaF2 with B2O3 are reviewed, detailing its impact on viscosity, liquidus temperature, melt structure, thermal conductivity, and the degree of steel desulfurization. One alternative fluidizer for refining slags is Al2O3, which positively influences the fluidity and desulfurization capacity of CaO–SiO2-based slags. Experimental heats were conducted using a solid slag mixture containing 58% Al2O3, 26% CaO, and 0.4% FeO at the ArcelorMittal Temirtau plant. The optimal consumption rate for this mixture was determined to be 0.7–1 kg per ton of steel.