A Review of the Occurrence and Recovery of Rare Earth Elements from Electronic Waste

被引：3
|
作者：
Liang, Binjun [1 ]
Gu, Jihan [1 ,2 ]
Zeng, Xiangrong [1 ]
Yuan, Weiquan [1 ]
Rao, Mingjun [3 ]
Xiao, Bin [1 ]
Hu, Haixiang [1 ]
机构：
[1] Gannan Univ Sci & Technol, Sch Resources & Civil Engn, Ganzhou Key Lab Mine Geol Disaster Prevent & Contr, Ganzhou 341000, Peoples R China
[2] Chongyi Green Met New Energy Co Ltd, Ganzhou 341300, Peoples R China
[3] Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
来源：
MOLECULES | 2024年 / 29卷 / 19期
关键词：
electronic waste; rare earth elements; recovery; green technologies; hydrometallurgy; IONIC LIQUID; SOLVENT-EXTRACTION; POWDER; SEPARATION; EUROPIUM; YTTRIUM; METALS;
D O I：
10.3390/molecules29194624
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Electronic waste (e-waste) contains valuable rare earth elements (REEs) essential for various high-tech applications, making their recovery crucial for sustainable resource management. This review provides an overview of the occurrence of REEs in e-waste and discusses both conventional and emerging green technologies for their recovery. Conventional methods include physical separation, hydrometallurgy, and pyrometallurgy, while innovative approaches such as bioleaching, supercritical fluid extraction, ionic liquid extraction, and lanmodulin-derived peptides offer improved environmental sustainability and efficiency. The article presents case studies on the extraction of REEs from waste permanent magnets and fluorescent powders, highlighting the specific processes involved. Future research should focus on developing eco-friendly leaching agents, separation materials, and process optimization to enhance the overall sustainability and efficiency of REE recovery from e-waste, addressing both resource recovery and environmental concerns effectively.
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页数：30
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