Electrochemical Behaviour of Light Lanthanides in Molten Chlorides with Fluorides

Material type: 図書

Author: 下原, 康彰ほか

Publisher: John Wiley & Sons, Inc.

Publication date: 2014-05

Material Format: Paper

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Note (General)：: Nickel misch metal hydride batteries contain light rare earths, thus the applicability of an electrochemical method using molten salts to recycle them...

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Paper

Material Type: 図書
Title: Electrochemical Behaviour of Light Lanthanides in Molten Chlorides with Fluorides
Author/Editor: 下原, 康彰
Yasuaki, Shimohara
根津, 篤
Nezu, Atsushi
沼倉, 正彦
Numakura, Masahiko
赤塚, 洋
AKATSUKA, HIROSHI
松浦, 治明
MATSUURA, HARUAKI
Author Heading: 下原, 康彰
Yasuaki, Shimohara
根津, 篤
Nezu, Atsushi
沼倉, 正彦
Numakura, Masahiko
赤塚, 洋
AKATSUKA, HIROSHI
松浦, 治明
MATSUURA, HARUAKI
Publication, Distribution, etc.: John Wiley & Sons, Inc.
Publication Date: 2014-05
Publication Date (W3CDTF): 2014-05
Periodical title: Molten Salts Chemistry and Technology
Text Language Code: eng
Subject Heading: rare earth, lanthanide, neodymium, molten salt electrolysis
Target Audience: 一般
Note (General): Nickel misch metal hydride batteries contain light rare earths, thus the applicability of an electrochemical method using molten salts to recycle them has been considered. To find out better the electrochemical condition for effective extraction of neodymium, the electrochemical behaviour of lanthanum, cerium and neodymium was investigated in a molten LiCl-KCl eutectic coexisting with LiF using tungsten and nickel electrodes. It was found that by using tungsten, the electro-reduction peaks of each rare earth in the cyclic voltammograms were more clarified with increasing the amount of LiF, while by using a nickel electrode, the major effect of fluoride addition on the potential of electro-reduction of rare earths could not be identified due to alloy formation of rare earths with nickel. Therefore, to co-extract rare earths from the melt bath, active electrodes are suitable but to separate neodymium from other rare earths, even inert electrodes are much suitable to be applied by the aid of species control in the electrolytes.
identifier:oai:t2r2.star.titech.ac.jp:50276997
Related Material (DOI): 10.1002/9781118448847.ch7g
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 東京工業大学 : 東京工業大学リサーチリポジトリ