α-Aminophosphonates, Phosphinates, and Phosphine Oxides as Extraction and Precipitation Agents for Rare Earth Metals, Thorium, and Uranium : A Review
Kukkonen, E., Virtanen, E., & Moilanen, J. (2022). α-Aminophosphonates, Phosphinates, and Phosphine Oxides as Extraction and Precipitation Agents for Rare Earth Metals, Thorium, and Uranium : A Review. Molecules, 27(11), Article 3465. https://doi.org/10.3390/molecules27113465
DisciplineEpäorgaaninen ja analyyttinen kemiaEpäorgaaninen kemiaNanoscience CenterInorganic and Analytical ChemistryInorganic ChemistryNanoscience Center
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
α-Aminophosphonates, -phosphinates, and -phosphine oxides are a group of organophosphorus compounds that were investigated as extraction agents for rare earth (RE) metals and actinoids for the first time in the 1960s. However, more systematic investigations of their extraction properties towards REs and actinoids were not started until the 2010s. Indeed, recent studies have shown that these α-amino-functionalized compounds can outperform the commercial organophosphorus extraction agents in RE separations. They have also proven to be very efficient extraction and precipitation agents for recovering Th and U from RE concentrates. These actinoids coexist with REs in some of the commercially important RE-containing minerals. The efficient separation and purification of REs is becoming more and more important every year as these elements have a pivotal role in many existing technologies. If one also considers the facile synthesis of α-amino-functionalized organophosphorus extractants and precipitation agents, it is expected that they will be increasingly utilized in the extraction chemistry of REs and actinoids in the future. This review collates α-aminophosphonates, -phosphinates, and -phosphine oxides that have been utilized in the separation chemistry of REs and actinoids, including their most relevant synthetic routes and molecular properties. Their extraction and precipitation properties towards REs and actinoids are also discussed. ...
ISSN Search the Publication Forum1420-3049
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Related funder(s)Academy of Finland
Funding program(s)Academy Research Fellow, AoF; Research costs of Academy Research Fellow, AoF
Additional information about fundingThis research was funded by the Academy of Finland, grant numbers 315829 and 320015.
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