Extraction of REE(III) with Mixtures of 2,4,6-tris(Diarylphosphoryl)-1,3,5-triazines and Picrolonic Acid

A. N. Turanov; Туранов А. Н.; V. K. Karandashev; Карандашев В. К.; O. I. Artyushin; Артюшин О. И.; E. V. Smirnova; Смирнова Е. В.; G. V. Bodrin; Бодрин Г. В.; V. K. Brel; Брель В. К.

doi:10.31857/S0044457X22602139

Extraction of REE(III) with Mixtures of 2,4,6-tris(Diarylphosphoryl)-1,3,5-triazines and Picrolonic Acid

Authors: Turanov A.N.¹, Karandashev V.K.², Artyushin O.I.³, Smirnova E.V.³, Bodrin G.V.³, Brel V.K.³
Affiliations:
1. Yu.A. Osipyan Institute of Solid State Physics, Russian Academy of Sciences
2. Institute of Microelectronics Technology and High Purity Materials, Russian Academy of Sciences
3. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences
Issue: Vol 68, No 5 (2023)
Pages: 664-671
Section: ФИЗИКОХИМИЯ РАСТВОРОВ
URL: https://rjmseer.com/0044-457X/article/view/665261
DOI: https://doi.org/10.31857/S0044457X22602139
EDN: https://elibrary.ru/SNIRMA
ID: 665261

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Abstract

Considerable synergetic effect has been revealed on extraction of REE(III) ions from chloride solutions with mixtures of picrolonic acid and tris(diarylphosphoryl)-1,3,5-triazines in 1,2-dichloroethane due to formation of hydrophobic mixed-ligand REE(III) complexes. Parameters of extraction equilibrium and stoichiometry of resulting complexes have been determined. Effect of aqueous phase composition, organic solvent nature, and extractant structure has been studied. The largest synergetic effect has been observed in the system with tris(ditolylphosphoryl)-1,3,5-triazine.

Keywords

REE(III), extraction, picrolonic acid, tris(diarylphosphoryl)-1,3,5-triazines, synergism

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