Recovery of neodymium from a mixture of magnet scrap and other scrap

被引：93

作者：

Takeda, O

Okabe, TH

Umetsu, Y

机构：

[1] Univ Tokyo, Grad Sch Engn, Meguro Ku, Tokyo 1538505, Japan

[2] Univ Tokyo, Inst Ind Sci, Int Res Ctr Sustainable MAt, Meguro Ku, Tokyo 1538505, Japan

[3] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 408卷

关键词：

neodymium; magnesium; recycling; rare earth magnet scrap; extraction;

D O I：

10.1016/j.jallcom.2005.04.094

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel neodymium (Nd) extraction process was devised and its feasibility was demonstrated in order to establish an environment-friendly process that combined scraps containing valuable metals. The newly developed device can simultaneously accomplish continuous extraction of Nd metal from scraps, re-extraction of magnesium (Mg) from Mg-Nd alloy, and finally, recovery of pure Mg. As a result, Nd metal of 98% purity was directly recovered from magnet scraps under certain conditions. Major process parameters, such as Mg/scrap mass ratio and extraction temperature, were investigated in order to evaluate the optimum conditions. The results of the investigated process indicated the possibility of extracting Nd metal directly from magnet scraps. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：387 / 390

页数：4

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