| METALS AND METAL MATRIX COMPOSITES |
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| Research Status and Development Trends of Eddy Current Separation in Non-ferrous Metals Recycling from End-of-life Vehicles |
| JIA Youdong1,2, LIU Jianxiong1,*, LI Xinzhi2, SUN Ting2, YAO Sibo3,4, LI Zhengfang2, ZENG Jiaxing1
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1 School of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China;
2 School of Mechanical and Electrical Engineering, Kunming University, Kunming 650214, China;
3 School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China;
4 Key Laboratory of Aviation Power Equipment Vibration and Control, Ministry of Education, Shenyang 110819, China |
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Abstract With the continuous increase in global vehicle ownership, the number of end-of-life vehicles has been rising annually. The efficient recycling of nonferrous metals has emerged as a critical task in resource reuse and environmental protection. Statistical data reveal a steady increase in the recovery rate of nonferrous metals, such as aluminum and copper, from scrapped vehicles, underscoring their growing significance in resource circularity. Coventional metal recycling methods predominantly rely on manual sorting and physical separation techniques. While these methods can recover some metals, they exhibit notable deficiencies in sorting efficiency, recovery accuracy, and processing speed. Eddy current separation technology, renowned for its high efficiency and precision in separating nonferrous metals like aluminum and copper, has found extensive applications. Despite its remarkable achievements in practical implementation, this technology confronts limitations when dealing with metals of low electrical conductivity and complex alloys. This paper presents a comprehensive review of the current applications and challenges of eddy current separation technology in the recycling of nonferrous metals from end-of-life vehicles. The technology's advantages and disadvantages were analyzed and perspectives on its future development directions were offered. By delving into the existing limitations, this paper aims to provide theoretical support for the further advancement and optimization of eddy current separation technology and facilitate its broader adoption in the metal recycling industry.
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Published: 10 March 2026
Online: 2026-03-10
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