Adrián Carrillo García, Mohammad Latifi, Ahmadreza Amini et Jamal Chaouki
Article de revue (2020)
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Libre accès au plein texte de ce document Version officielle de l'éditeur Conditions d'utilisation: Creative Commons: Attribution (CC BY) Télécharger (2MB) |
Abstract
Rare earth elements (REE), originally found in various low-grade deposits in the form of different minerals, are associated with gangues that have similar physicochemical properties. However, the production of REE is attractive due to their numerous applications in advanced materials and new technologies. The presence of the radioactive elements, thorium and uranium, in the REE deposits, is a production challenge. Their separation is crucial to gaining a product with minimum radioactivity in the downstream processes, and to mitigate the environmental and safety issues. In the present study, different techniques for separation of the radioactive elements from REE are reviewed, including leaching, precipitation, solvent extraction, and ion chromatography. In addition, the waste management of the separated radioactive elements is discussed with a particular conclusion that such a waste stream can be employed as a valuable co-product.
Mots clés
rare earth elements; thorium; uranium; separation methods; precipitation; solvent extraction; leaching; membrane
Sujet(s): |
1800 Génie chimique > 1800 Génie chimique 1800 Génie chimique > 1806 Procédés de séparation |
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Département: | Département de génie chimique |
Organismes subventionnaires: | CRSNG / NSERC / CRD, Niobec |
URL de PolyPublie: | https://publications.polymtl.ca/9410/ |
Titre de la revue: | Metals (vol. 10, no 11) |
Maison d'édition: | MDPI |
DOI: | 10.3390/met10111524 |
URL officielle: | https://doi.org/10.3390/met10111524 |
Date du dépôt: | 16 août 2023 14:51 |
Dernière modification: | 09 avr. 2024 01:43 |
Citer en APA 7: | García, A. C., Latifi, M., Amini, A., & Chaouki, J. (2020). Separation of radioactive elements from rare earth element-bearing minerals. Metals, 10(11), 1524 (22 pages). https://doi.org/10.3390/met10111524 |
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