Extraction Properties of 4-Tetra(hydroxyphenyl)BTPhen in Liquid-Liquid Extraction Systems with Cyclohexanone/Octanol or in a Solid-Phase Extraction System

Afsar, Ashfaq; Babra, Jasraj S.; Distler, Petr; Harwood, Laurence M.; Hopkins, Iain; John, Jan; Westwood, James; Selfe, Zoe Y.

doi:10.3987/com-19-s(f)14

Cited by 2 publications

(1 citation statement)

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“…Chloride, used in Seaborg’s initial discovery of actinide covalency, is unsuitable for industrial-scale use due to its incompatibility with the stainless steel commonly used in the solvent extraction equipment. Nitrogen ligands, aligning with the CHON principle for simplified waste management, have been widely considered, but their slow kinetics and the use of unfavorable diluents have somewhat limited their applicability. ,− Sulfur ligands, although not aligning with the CHON principle, have achieved record breaking separations factors. ,− Among these, bis(2,4,4-trimethylpentyl)dithiophosphinic acid (denoted as HBTMPDTP or HL hereafter, Figure ), has been extensively studied at both the fundamental and application levels.…”

Section: Introductionmentioning

confidence: 99%

Tuning Selectivity to f-Elements through Bonding and Solvation Effects of a Sulfur Donor Ligand

Pu,

Archer,

et al. 2024

Inorg. Chem.

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Bis(2,4,dithiophosphinic acid, commonly referred to as HBTMPDTP or Cyanex301, is a sulfur-donating ligand that shows considerable promise in the challenging task of separating trivalent actinides (An 3+ ) from lanthanides (Ln 3+ ). Although its effectiveness has been established, the specific molecular details about the preference of HBTMPDTP for americium over europium have remained a mystery, puzzling researchers for over two decades. This study presents a comprehensive, dualdriven separation mechanism for this complex system combining experimental and theoretical approaches. A critical finding is the increased covalency in An−S bonds compared to Ln−S bonds, which plays a significant role in HBTMPDTP's intrinsic selectivity for An 3+ over Ln 3+ . This leads to the formation of distinct An 3+ and Ln 3+ species, enhancing the ligand's actinide selectivity. Additionally, it provides crucial insights into the coordination chemistry of felements with sulfur-donating ligands, thereby deepening our understanding of this intricate field.

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Section: Introductionmentioning

confidence: 99%

Tuning Selectivity to f-Elements through Bonding and Solvation Effects of a Sulfur Donor Ligand

Pu,

Archer,

et al. 2024

Inorg. Chem.

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Lipophilic phenanthroline diamide ligands in 1-octanol for separation of Am(III) from Eu(III)

Yang

Liu²,

Tao³

et al. 2022

Journal of Environmental Chemical Engineering

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Extraction Properties of 4-Tetra(hydroxyphenyl)BTPhen in Liquid-Liquid Extraction Systems with Cyclohexanone/Octanol or in a Solid-Phase Extraction System

Abstract: Extraction properties of 4-Tetra(hydroxyphenyl)BTPhen in liquid-liquid extraction systems with Cyclohexanone/Octanol or in a solidphase extraction system. Heterocycles, 101 (1). pp. 209-222.

Cited by 2 publications

References 37 publications

Tuning Selectivity to f-Elements through Bonding and Solvation Effects of a Sulfur Donor Ligand

Tuning Selectivity to f-Elements through Bonding and Solvation Effects of a Sulfur Donor Ligand

Lipophilic phenanthroline diamide ligands in 1-octanol for separation of Am(III) from Eu(III)

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