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Aluminum alloysAluminum alloy find applications across diverse sectors, from household products to high-tech industries due to their lightweightLightweight propertiesProperties, corrosion resistance, and formabilityFormability. As the ultimate circular material, aluminumAluminum can be recycled indefinitely. However, repeated recyclingRecycling accumulates impurities (Fe, Mn, Cu, Si, and Mg), degrading scrapScrap qualityQuality and value, while poor alloy sorting exacerbates contamination and restricts high-qualityQuality production. With automotiveAutomotive aluminumAluminum demand projected to quadruple by 2050, this could create a global ‘scrapScrap surplus’ crisis dominated by low-value scrapsScrap. To address this, the development of advanced sorting and purification technologies is essential. In secondary aluminum alloysSecondary aluminum alloys, Fe poses the most significant threat, forming detrimental β-AlFeSi intermetallicIntermetallics needles that impair mechanical propertiesMechanical properties. This study focuses on scaling up an innovative gravity sedimentationGravity sedimentation method for ironIron removal from aluminumAluminum scrapScrap, based on bench-scale results. This work pinpoints implementation challenges and delivers scalable solutions for industrial adoption of the technology.

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Gravity Sedimentation Technique for Industrial Scale Iron Removal in Recycled Aluminum Alloys

  • 会议论文

  • 发表日期：

    2026年

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  • Manish Kumar Sinha,
  • David Weiss,
  • Tom Grosko,
  • Subodh Das,
  • Brajendra Mishra

摘要

Aluminum alloysAluminum alloy find applications across diverse sectors, from household products to high-tech industries due to their lightweightLightweight propertiesProperties, corrosion resistance, and formabilityFormability. As the ultimate circular material, aluminumAluminum can be recycled indefinitely. However, repeated recyclingRecycling accumulates impurities (Fe, Mn, Cu, Si, and Mg), degrading scrapScrap qualityQuality and value, while poor alloy sorting exacerbates contamination and restricts high-qualityQuality production. With automotiveAutomotive aluminumAluminum demand projected to quadruple by 2050, this could create a global ‘scrapScrap surplus’ crisis dominated by low-value scrapsScrap. To address this, the development of advanced sorting and purification technologies is essential. In secondary aluminum alloysSecondary aluminum alloys, Fe poses the most significant threat, forming detrimental β-AlFeSi intermetallicIntermetallics needles that impair mechanical propertiesMechanical properties. This study focuses on scaling up an innovative gravity sedimentationGravity sedimentation method for ironIron removal from aluminumAluminum scrapScrap, based on bench-scale results. This work pinpoints implementation challenges and delivers scalable solutions for industrial adoption of the technology.