Synergistic Solvent Extraction of Lanthanides(III) with Mixtures of 4-benzoyl-3-methyl-1-phenylpyrazol-5-one and Some Novel Carbamoyl- and Phosphorylmethoxymethylphosphine Oxides

Туранов, А. Н.; Карандашев, В. К.; Харламов, А. В.; Бондаренко, Н. А.

doi:10.1080/07366299.2014.908584

Cited by 31 publications

(15 citation statements)

References 20 publications

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“…A wealth of previously published results for several trivalent elements and various solvents 18,33,[39][40][41][42] have shown that the extraction equilibria of lanthanoids with 4-acylpyrazolones can be described by the equation:…”

Section: Extraction Of Ln(iii) Ions With 3-methyl-1-phenyl-4-(4phenylmentioning

confidence: 99%

Are fancy acidic or neutral ligands really needed for synergism in ionic liquids? A comparative study of lanthanoid extraction in CHCl₃ and an ionic liquid

et al. 2015

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The study of trivalent lanthanoid (La, Nd, Eu, Ho and Lu) extraction by two individual ligands: one acidic as pyrazolone derivative, 3-methyl-1-phenyl-4-(4-phenylbenzoyl)-pyrazol-5-one (HL), and one neutral as 5,11,17,23-tetratert-butyl-25,26,27,28-tetrakis-(dimethylphosphinoylmethoxy)calix[4]arene (SIV) was performed in CHCl3 and in one ionic liquid, IL (1-methyl-1,3butylimidazolium-bis(trifluoromethanesulfonyl)imide ([C1C4im][Tf2N]) in order to establish and examine the impact of the diluent onto the individual and synergistic extraction processes. Chloride aqueous medium and constant ionic strength μ = 0.1 M were set in both cases. The parameters of the extraction processes were determined. Comparison between the two diluents was made on the basis of: i) Composition of the extracted species: LnL3·HL in CHCl3 vs LnL3 in IL with HL as a single extractant (L − represents the HL anion), and LnL3·SIV in the presence of the phosphorus-containing calix[4]arene in both diluents; and ii) Values of the equilibrium constants and the synergistic enhancements; the separation factors between metals were evaluated as well.The IL medium appears far superior to the molecular solvent in terms of individual and overall synergistic extraction efficiencies. However, the huge differences in extraction efficiencies observed in CHCl3 for chemically different ligands are erased in the IL medium, thus modifying the lever arms on which chemists should rely in order to obtain even better extracting systems in ionic liquid media.

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Section: Extraction Of Ln(iii) Ions With 3-methyl-1-phenyl-4-(4phenylmentioning

confidence: 99%

Are fancy acidic or neutral ligands really needed for synergism in ionic liquids? A comparative study of lanthanoid extraction in CHCl₃ and an ionic liquid

et al. 2015

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“…The solvent extraction of the lanthanoid(III) ions with 4-acylpyrazolones has been studied previously (25,28,29,30,32,33). It has been found that the metal extraction can be represented by the following equation:…”

Section: Resultsmentioning

confidence: 99%

Coordination chemistry of a para-tert-octylcalix[4]arene fitted with phosphinoyl pendant arms towards 4f-elements: Extraction, synergism, separation

Atanassova

Vassilev

Tashev

et al. 2015

Separation Science and Technology

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To cite this article: Maria Atanassova, Nikolay Vassilev, Emil Tashev, Victoria Lachkova & Sabi Varbanov (2015): Coordination chemistry of a para-tert-octylcalix[4] arene fitted with phosphinoyl pendant arms towards 4f-elements: extraction, synergism, separation, Separation Science and Technology, Abstract: The solvent extraction of trivalent lanthanoids (Ln 3+ ) by 5,11,17,23-tetra(para-tertoctyl)-25,26,27,28-tetrakis(dimethylphosphinoylmethoxy)calix[4]arene (S), bearing four phosphine oxide donor groups at the lower rim as synergistic agent in combination with a 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one (HP) in CHCl 3 from chloride medium at µ=0.1 was quantitatively described in the form of LnP 3 ·S complexes. The role of the synergistic agent on the extraction process was discussed. The values of the separation factors have been evaluated. Separation Science and TechnologyA c c e p t e d M a n u s c r i p t 2 On the basis of the IR and NMR spectra the stoichiometry and the structure of the solid mixed complex of Eu(III) with HP and S were proposed.

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“…and neutral donor extractants (e.g. nitrogen-containing compounds, [4][5][6] sulfoxides, 7,8 crown ethers, 3,[9][10][11] diglycolamides, 12 neutral mono-and polydentate organophosphorus compounds, [13][14][15][16][17][18][19][20] etc.) has been studied.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Solvent Extraction of Lanthanides(III) with Mixtures of 4-Benzoyl-3-Methyl-1-Phenyl-5-Pyrazolone and Phosphoryl-Containing Podands

Туранов

Карандашев

Баулин

et al. 2020

ACSi

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Synergistic Solvent Extraction of Lanthanides(III) with Mixtures of 4-benzoyl-3-methyl-1-phenylpyrazol-5-one and Some Novel Carbamoyl- and Phosphorylmethoxymethylphosphine Oxides

Cited by 31 publications

References 20 publications

Are fancy acidic or neutral ligands really needed for synergism in ionic liquids? A comparative study of lanthanoid extraction in CHCl₃ and an ionic liquid

Are fancy acidic or neutral ligands really needed for synergism in ionic liquids? A comparative study of lanthanoid extraction in CHCl₃ and an ionic liquid

Coordination chemistry of a para-tert-octylcalix[4]arene fitted with phosphinoyl pendant arms towards 4f-elements: Extraction, synergism, separation

Synergistic Solvent Extraction of Lanthanides(III) with Mixtures of 4-Benzoyl-3-Methyl-1-Phenyl-5-Pyrazolone and Phosphoryl-Containing Podands

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Synergistic Solvent Extraction of Lanthanides(III) with Mixtures of 4-benzoyl-3-methyl-1-phenylpyrazol-5-one and Some Novel Carbamoyl- and Phosphorylmethoxymethylphosphine Oxides

Cited by 31 publications

References 20 publications

Are fancy acidic or neutral ligands really needed for synergism in ionic liquids? A comparative study of lanthanoid extraction in CHCl3 and an ionic liquid

Are fancy acidic or neutral ligands really needed for synergism in ionic liquids? A comparative study of lanthanoid extraction in CHCl3 and an ionic liquid

Coordination chemistry of a para-tert-octylcalix[4]arene fitted with phosphinoyl pendant arms towards 4f-elements: Extraction, synergism, separation

Synergistic Solvent Extraction of Lanthanides(III) with Mixtures of 4-Benzoyl-3-Methyl-1-Phenyl-5-Pyrazolone and Phosphoryl-Containing Podands

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Are fancy acidic or neutral ligands really needed for synergism in ionic liquids? A comparative study of lanthanoid extraction in CHCl₃ and an ionic liquid

Are fancy acidic or neutral ligands really needed for synergism in ionic liquids? A comparative study of lanthanoid extraction in CHCl₃ and an ionic liquid