Recycling Bonded Nd-Fe-B Magnet Wastes: Recycle, Repreparation, and Life Cycle Assessment

被引：2
|
作者：
Zhu, Peihong [1 ]
Liu, Min [1 ]
Yang, Yaxuan [1 ]
Gao, Ke [1 ]
Xuan, Yueheng [2 ]
Liu, Weiqiang [1 ]
Lu, Qingmei [1 ]
Ding, Yue [3 ]
Zhang, Baoguo [3 ]
Meng, Hui [4 ]
Wei, Qifeng [4 ]
Yue, Ming [1 ]
机构：
[1] Beijing Univ Technol, Coll Mat Sci & Engn, Key Lab Adv Funct Mat, Minist Educ China, Beijing 100124, Peoples R China
[2] Dalian Univ Foreign Languages, Sch Software, Dalian 116044, Peoples R China
[3] Hangzhou Kede Magnet Components Co Ltd, Hangzhou 311500, Peoples R China
[4] Hangzhou Foresee Technol Co Ltd, Hangzhou 311500, Peoples R China
来源：
ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2024年 / 12卷 / 34期
基金：
国家重点研发计划;
关键词：
bonded Nd-Fe-B magnet waste; short-processrecycling; repreparation magnets; magnetic property; life cycle assessment; EPOXY-RESIN; CORROSION BEHAVIOR; COMPOSITES; RECOVERY; SCRAP; SIZE;
D O I：
10.1021/acssuschemeng.4c03639
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
At present, the research on the recycling of bonded Nd-Fe-B magnet wastes is primarily conducted at the laboratory level. This study presents the kilogram-scale recycling of waste bonded Nd-Fe-B magnets using a NaOH-ethylene glycol solution. The impact of reaction temperature and catalyst concentration on the recycling process at this scale was investigated, and regenerated bonded Nd-Fe-B magnets were prepared from recycled magnetic powders. The magnetic properties of the recycled powders and regenerated magnets closely resembled those of the original products. Additionally, a life cycle assessment was conducted to analyze the production and recycling process of bonded Nd-Fe-B magnetic powders, revealing lower environmental impacts for the recycling process compared to production. Therefore, successful scale-up recycling through a NaOH-ethylene glycol solution demonstrates potential commercial and environmental opportunities for bonded Nd-Fe-B magnet waste.
引用
收藏
页码：12858 / 12868
页数：11
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