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Neodymium extraction using salt extraction process
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Process Science.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Process Science.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Process Science.ORCID iD: 0000-0003-4695-9308
2015 (English)In: Mineral Processing and Extractive Metallurgy: Transactions of the Institutions of Mining and Metallurgy: Section C, ISSN 0371-9553, E-ISSN 1743-2855, Vol. 124, no 4, p. 191-198Article in journal (Refereed) Published
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Text
Abstract [en]

The present paper deals with the feasibility of the neodymium recovery from spent Nd-Fe-B magnets using molten salt electrodeposition method. The salt bath consisted of a mixture of LiCl- KCl-NaCl corresponding to the eutectic composition. The experimental set-up with its salient features is presented. AlCl3 was used as flux and graphite rods dipped in the salt bath served as electrodes. The voltage for the electrolysis was chosen on the basis of the decomposition potential of NdCl3. The reaction sequence can be described as Iron-free neodymium deposition could be carried out successfully. In view of the proximity of the electrode potentials, the co-deposition of the aluminium and neodymium was observed to occur at the cathode, as revealed by SEM/EDS and XRD analyses of the electrodeposit.

Place, publisher, year, edition, pages
Maney Publishing, 2015. Vol. 124, no 4, p. 191-198
Keywords [en]
Aluminium chloride, Electrodeposition, Molten salt, Neodymium
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-181834DOI: 10.1179/1743285514Y.0000000062ISI: 000210950300001Scopus ID: 2-s2.0-84950321140OAI: oai:DiVA.org:kth-181834DiVA, id: diva2:902413
Note

QC 20160211

Available from: 2016-02-11 Created: 2016-02-05 Last updated: 2024-03-18Bibliographically approved

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Teng, LidongSeetharaman, Seshadri

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Abbasalizadeh, AidaTeng, LidongSeetharaman, Seshadri
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Materials Process Science
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Mineral Processing and Extractive Metallurgy: Transactions of the Institutions of Mining and Metallurgy: Section C
Metallurgy and Metallic Materials

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