Téléchargement | - Voir la version finale : Separation of neodymium (III) and lanthanum (III) via a flat sheet-supported liquid membrane with different extractant-acid systems (PDF, 2.5 Mio)
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DOI | Trouver le DOI : https://doi.org/10.3390/membranes12121197 |
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Auteur | Rechercher : Li, Lin1; Rechercher : Yu, Ben1; Rechercher : Davis, Krystal1; Rechercher : King, Aaron1; Rechercher : Dal-Cin, Mauro1; Rechercher : Nicalek, Andrzej1; Rechercher : Du, Naiying1 |
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Affiliation | - Conseil national de recherches du Canada
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Format | Texte, Article |
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Sujet | supported liquid membrane; solvent extraction; neodymium(III); lanthanum(III); extractant |
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Résumé | The increasing demand for neodymium (Nd) permanent magnets in electric motors has revived research interest of Nd recovery and separation from other rare earth elements (REEs). Typically, Nd/La separation is necessary for Nd recovery from primary ores and secondary resource recycling. This research used a flat sheet-supported liquid membrane (FSSLM) with different extractant-acid systems to extract Nd from a Nd/La mixture. The recovery and separation of Nd/La with 204P-H₂SO₄, 507P-HCl, and TBP-HNO₃ were discussed. The results showed effective Nd recovery and promising Nd/La selectivity could be achieved in the 507P-HCl system, compared to 204P-H₂SO₄ and TBP-HNO₃. The addition of citric acid to the feed solution was effective for pH buffering but did not improve the Nd transport or Nd/La selectivity. Long-term stability of the 507P-HCl extractant system was demonstrated by extending the processing time from 6 h to 6 days. |
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Date de publication | 2022-12 |
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Maison d’édition | MDPI |
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Licence | |
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Dans | |
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Langue | anglais |
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Publications évaluées par des pairs | Oui |
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Identificateur | membranes12121197 |
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Exporter la notice | Exporter en format RIS |
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Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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Identificateur de l’enregistrement | 6335a19e-d3d6-41c3-aff0-50d643b02e0b |
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Enregistrement créé | 2024-03-19 |
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Enregistrement modifié | 2024-03-19 |
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