2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 7: Ionic Liquids & Energy Production
| Editors: | Kongoli F, Gaune-Escard M, Mauntz M, Rubinstein J, Dodds H.L. |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 310 pages |
| ISBN: | 978-1-987820-30-0 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Electrochemical Behavior of Neodymium in Molten Salts
Mickael Mery1; Patrick Masset1; Clemens Schmetterer1;1FRAUNHOFER UMSICHT, Sulzbach-Rosenberg, Germany (Deutschland);
Type of Paper: Regular
Id Paper: 207
Topic: 13
Abstract:
Neodymium is a lanthanide and belongs to the rare earth elements. Its implementation in current devices such as computers or LCD-screens and its utilization in green technologies such as electric cars and wind turbines increase every year. In these technologies the neodymium is incorporated in permanent magnet (Nd2Fe14B).
Neodymium, as fission product in nuclear reactors, can be recovered from fission products by pyrochemical process. This process represents an alternative to the hydrometallurgical process (PUREX) in order to separate actinides and lanthanides.
Neodymium, contained in Nd2Fe14B-Magnets, can be recycled using hydrometallurgical and/or pyrometallugical processes, which have some disadvantages such as a high energy demand or/and huge amounts of chemicals. An alternative method could be a selective reduction of the neodymium contained in the magnets. In order to recover the neodymium as pure metal using molten salts, the thermochemical and electrochemical properties of neodymium have to be well known. The solubility, diffusion coefficients redox potential and the interaction between neodymium and molten salts are important characteristics to obtain a successful extraction. In this paper, the electrochemical behavior of neodymium in mixed molten salts investigated by classical transient electrochemical techniques will be presented and discussed.
Keywords:
Electrochemical; Electrolysis; Moltensalt; Neodymium;References:
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