Scholarlink

<p>Silico-chrome (Fe–Cr–Si) is a vital ferroalloy in modern steelmaking, valued for its dual role as a deoxidizer and chromium source. This study provides a comprehensive global assessment of silico-chrome production, encompassing ore quality, beneficiation performance, smelting efficiency, and sustainability implications. Chromite geochemistry and mineralogy strongly control metallurgical behavior, with higher Cr/Fe ratios and lower silica content favoring efficient reduction and slag management. Comparative evaluation of production routes reveals that the two-step process offers approximately 25–30% lower energy consumption, 20–30% lower CO₂ emissions, and 10% higher chromium recovery than the conventional one-step route. Technological innovations such as hydrogen-based and plasma-assisted reduction, off-gas utilization, slag valorization, and digital process optimization demonstrate significant potential for decarbonization and circular resource use. The integration of renewable energy, zero-discharge beneficiation, and life cycle assessment (LCA) frameworks ensures responsible production and ESG compliance. Overall, sustainable silico-chrome production driven by green energy, digitalization, and waste recycling represents a transformative pathway toward carbon–neutral and resource-efficient ferroalloy metallurgy, aligning with global climate and circular economy objectives.</p> Graphical Abstract <p></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

Silico-Chrome (Fe–Cr–Si) Production from Chromite: A Global Review of Process Efficiency, Environmental Challenges, and Sustainable Metallurgical Pathways

  • 期刊论文

  • 发表日期：

    2025年12月29日

查看全文
  • Jayant Kumar Sahoo

摘要

Silico-chrome (Fe–Cr–Si) is a vital ferroalloy in modern steelmaking, valued for its dual role as a deoxidizer and chromium source. This study provides a comprehensive global assessment of silico-chrome production, encompassing ore quality, beneficiation performance, smelting efficiency, and sustainability implications. Chromite geochemistry and mineralogy strongly control metallurgical behavior, with higher Cr/Fe ratios and lower silica content favoring efficient reduction and slag management. Comparative evaluation of production routes reveals that the two-step process offers approximately 25–30% lower energy consumption, 20–30% lower CO₂ emissions, and 10% higher chromium recovery than the conventional one-step route. Technological innovations such as hydrogen-based and plasma-assisted reduction, off-gas utilization, slag valorization, and digital process optimization demonstrate significant potential for decarbonization and circular resource use. The integration of renewable energy, zero-discharge beneficiation, and life cycle assessment (LCA) frameworks ensures responsible production and ESG compliance. Overall, sustainable silico-chrome production driven by green energy, digitalization, and waste recycling represents a transformative pathway toward carbon–neutral and resource-efficient ferroalloy metallurgy, aligning with global climate and circular economy objectives.

Graphical Abstract