Rare-earth recycling using a functionalized ionic liquid for the selective dissolution and revalorization of Y sub(2)O sub(3):Eu super(3 +) from lamp phosphor waste

• Published in: Green chemistry : an international journal and green chemistry resource : GC Vol. 17; no. 2; pp. 856 - 868
• Main Authors: Dupont, David, Binnemans, Koen
• Format: Journal Article
• Language: English
• Published: 01.02.2015
• Subjects: Dissolution; Ionic liquids; Lamps; Oxalic acid; Phosphors; Rare earth metals; Recycling; Wastes

The supply risk for certain rare-earth elements (REEs) has sparked the development of recycling schemes for end-of-life products like fluorescent lamps. In this paper a new recycling process for lamp phosphor waste is proposed based on the use of the functionalized ionic liquid betainium bis(trifluo...