Recycling Potential of Neodymium: The Case of Computer Hard Disk Drives

被引：124

作者：

Sprecher, Benjamin ^{[1
,2
]}

Kleijn, Rene ^{[1
]}

Kramer, Gert Jan ^{[1
]}

机构：

[1] Leiden Univ, Inst Environm Sci Leiden CML, NL-2300 RA Leiden, Netherlands

[2] Mat Innovat Inst M2i, NL-2600 GA Delft, Netherlands

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2014年 / 48卷 / 16期

关键词：

RARE-EARTH-ELEMENTS; IN-USE STOCKS; PERMANENT-MAGNETS;

D O I：

10.1021/es501572z

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Neodymium, one of the more critically scarce rare earth metals, is often used in sustainable technologies. In this study, we investigate the potential contribution of neodymium recycling to reducing scarcity in supply, with a case study on computer hard disk drives (HDDs). We first review the literature on neodymium production and recycling potential. From this review, we find that recycling of computer HDDs is currently the most feasible pathway toward large-scale recycling of neodymium, even though HDDs do not represent the largest application of neodymium. We then use a combination of dynamic modeling and empirical experiments to conclude that within the application of NdFeB magnets for HDDs, the potential for loop-closing is significant: up to 57% in 2017. However, compared to the total NdFeB production capacity, the recovery potential from HDDs is relatively small (in the 1-3% range). The distributed nature of neodymium poses a significant challenge for recycling of neodymium.

引用

页码：9506 / 9513

页数：8

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