Electrochemical formation of Dy-Fe and Nd-fe alloys in molten CaCl2-LiCl systems

H. Konishi, H. Hua, H. Ono, Y. Koizumi, T. Oishi, T. Nohira

研究成果: 書籍の章/レポート/会議録会議への寄与査読

11 被引用数 (Scopus)

抄録

Here we study the recovery process of rare earth metals from Nd magnet scraps via electrolysis in a molten salt and with an alloy diaphragm. In the present study, the electrochemical formation of Dy-Fe and Nd-Fe alloys, which was an important step of the recovery process, was investigated in molten CaCl2-LiCl systems at 873 K. Two Dy-Fe alloy samples were prepared by potentiostatic electrolysis of Fe plate electrodes at 0.30 V (vs. Li+/Li) and 0.50 V for 1 h in CaCl2-LiCl-DyCb (0.50 mol% added). The formation of DyFes was suggested by X-ray diffraction (XRD). Potentiostatic electrolysis was also conducted at 0.30 V and 0.50 V for 1 h using Fe plate electrodes in CaCl2-LiCl-NdCb (0.50 mol% added). XRD analysis suggested the formation of NdiFew for both samples. The equilibrium potentials for (DyFes+Fe) and (Nd2Fei7+Fe) coexisting phases were indicated.

本文言語英語
ホスト出版物のタイトルECS Transactions
編集者W. Matthew Reichert, Robert A. Mantz, Paul C. Trulove, Luke M. Haverhals, Elizabeth J. Biddinger, Hugh C. De Long, Alice H. Suroviec, Minoru Mizuhata, Mikito Ueda, Adriana Ispas, Andreas Bund, David P. Durkin
出版社Electrochemical Society Inc.
ページ321-328
ページ数8
14
ISBN(電子版)9781607688617
ISBN(印刷版)9781510871748
DOI
出版ステータス出版済み - 2018
イベントSymposium on Molten Salts and Ionic Liquids 21 - AiMES 2018, ECS and SMEQ Joint International Meeting - Cancun, メキシコ
継続期間: 2018/09/302018/10/04

出版物シリーズ

名前ECS Transactions
番号14
86
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

学会

学会Symposium on Molten Salts and Ionic Liquids 21 - AiMES 2018, ECS and SMEQ Joint International Meeting
国/地域メキシコ
CityCancun
Period2018/09/302018/10/04

ASJC Scopus 主題領域

  • 工学一般

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