Micheline Draye, Sylvie Thomas
A less-common extraction procedure, cloud-point extraction, is used with a lipophilic chelating agent (8-hydroxyquinoline) to extract and separate lanthanum(III) and gadolinium(III) ions from an aqueous solution. Surfactant solutions are used in conjunction with 8-hydroxyquinoline to form a lanthanide complex that is extracted into the micellar phase at a temperature above the cloud-point temperature. The structure of the lipophilic part of the nonionic surfactant, the chelating agent–metal molar ratio, and the cloud-point temperature are identified as factors determining the extraction efficiency and selectivity. With Triton X-114, a selectivity higher than 30 and a decontamination factor of 50 for Gd(III) indicate that micelle-mediated cloud-point extraction is promising for the specific separation of actinide ions from nuclear waste. Finally, a microwave procedure is proposed to decrease the duration of the experiment to less than 6 min.
@article{eaece2ff-cde8-4ab9-b551-e77ce915f442,
title={Cloud Point Extraction for Selective Rem},
author={Micheline Draye and Sylvie Thomas},
year={2026},
language={en}
}TY - JOUR TI - Cloud Point Extraction for Selective Rem AU - Micheline Draye AU - Sylvie Thomas PY - 2026 LA - en ER -
Unknown, Unknown
This chapter discusses metal casting processes, highlighting the diversity and common characteristics among them. The objective is to elucidate the fu
Unknown, Unknown
This study focuses on the fundamental characteristics of solid iron, which is predominantly composed of iron atoms and provides a basis for understand
Ir. Méshac KIME ILUNGA
Ce document traite des procédés métallurgiques spéciaux, en mettant particulièrement l'accent sur l'extraction liquide-liquide, un processus mis au po
Copper solvent extraction units at large hydrometallurgical plants face constraints in metal recovery, phase disengagement, and reagent consumption, d
Non spécifié
L'hydrométallurgie du cuivre, principalement axée sur les minerais oxydés facilement solubles, s'applique également aux minerais sulfurés ou mixtes ap