Study of the Antagonistic Extraction of Palladium(ii) With 1-Phenyl-3-Methyl-4-Propionylpyrazolone-5-One and an Organic Amine

Zhang, Anyun

doi:10.1081/sei-100107030

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…For instance, the addition of a calixarene tert-butylcalix [4]arene tetrakis(N,N-dimethylacetamide) (S) to the chelating extractant HTTA improves the extraction efficiency of the all Ln (III) ions in 4f-series and produces large synergistic effects, up to 10 6 . The very-high synergistic enhancement shows that the possible interaction between the extractants in the organic phase can be neglected; otherwise, an antagonistic effect would occur [109,110]. The SC values obtained in this case of acidic/neutral coupling are approximately two times higher than the case when HPBI (4-benzoyl-3-phenyl-5-isoxazolone) was used as a chelating extractant instead of HTTA in combination with the same synergist [60], as well as in comparison with the combination of HTTA and another calixarene, 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetrakis-(dimethylphosphinoylmethoxy)calix [4]arene [13] (see Figure 2).…”

Section: Synergism In Liquid-liquid Extraction Of Metal Ions With a C...mentioning

confidence: 99%

Thenoyltrifluoroacetone: Preferable Molecule for Solvent Extraction of Metals—Ancient Twists to New Approaches

Atanassova

2022

Separations

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A review of the investigations devoted to the solvent extraction processes of metal ions with a chelating ligand thenoyltrifluoroacetone (HTTA) is presented herein. It seems that this molecule has been preferred in the field for more than half a century, and that it is used very often as an extractant for almost all metals. The main objective of the present review is also to provide an overview of the synergistic solvent extraction of lanthanoids, particularly with the use of a β-diketone−neutral mixture. Based on the previous published results in the open literature, the extraction efficiency has been examined in detail and discussed further mainly in terms of the corresponding equilibrium constants among other outlined, so-important parameters. Major conclusions on the role of ligating groups of extractants towards the mechanism, an improved extraction enhancement, and selectivity are additionally provided. The fact that ionic liquids (ILs) appear to be replacing volatile diluents in the field of the liquid–liquid extraction of metals, again with the participation of this β-diketone, is not surprising. As is well known, a very efficient and simple way to determine the stoichiometry of the extracted species in the organic phase is by the simple use of the slope analysis method; however, it is sometimes difficult to perform, either because it somehow requests good solubility of the ligand or because obtained slopes are quite often far from integer values in ILs.

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Section: Synergism In Liquid-liquid Extraction Of Metal Ions With a C...mentioning

confidence: 99%

Thenoyltrifluoroacetone: Preferable Molecule for Solvent Extraction of Metals—Ancient Twists to New Approaches

Atanassova

2022

Separations

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Solvent extraction of rare earths from chloride medium with mixtures of 1-phenyl-3-methyl-4-benzoyl-pyrazalone-5 and sec-octylphenoxyacetic acid

Tong

Song

Jia

et al. 2009

Separation and Purification Technology

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Synergistic Effect in the Solvent Extraction and Separation of Lanthanoids by 4-(4-Fluorobenzoyl)-3-methyl-1-phenyl-pyrazol-5-one in the Presence of Monofunctional Neutral Organophosphorus Extractants

Petrova

Kurteva

Lubenov

2011

Ind. Eng. Chem. Res.

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4-(4-Fluorobenzoyl)-3-methyl-1-phenyl-pyrazol-5-one (HL) has been synthesized and its complexation properties in solution were examined. Mixed ligand chelate extraction of trivalent lanthanoids (La, Nd, Eu, Ho, and Lu) from chloride medium at constant ionic strength μ = 0.1 into C 6 H 6 with HL in combination with one of the three phosphine oxide compounds trioctylphosphine oxide (TOPO), tributylphosphine oxide (TBPO), or triphenylphosphine oxide (TPPO) as well as with tributylphosphate (TBP) was studied. The interaction between the extractants in C 6 H 6 -d 6 has been studied by 1 H, 13 C, and 31 P NMR spectroscopy and its influence on the synergistic extraction of Nd(III) ion has been investigated. The composition of the extracted species was established as LnL 3 3 HL with HL alone and as LnL 3 3 2S in the presence of TOPO, TPPO, and TBP or LnL 3 3 S with the mixture of HLÀTBPO. A synergic effect up to 10 6 was observed for the extraction of the above-mentioned lanthanoid ions with binary mixtures of extractants. The change of the synergistic agent causes a significant increase of the K L,S values. The parameters of the extraction process were determined and the separation factors were calculated.

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Study of the Antagonistic Extraction of Palladium(ii) With 1-Phenyl-3-Methyl-4-Propionylpyrazolone-5-One and an Organic Amine

Cited by 3 publications

References 17 publications

Thenoyltrifluoroacetone: Preferable Molecule for Solvent Extraction of Metals—Ancient Twists to New Approaches

Thenoyltrifluoroacetone: Preferable Molecule for Solvent Extraction of Metals—Ancient Twists to New Approaches

Solvent extraction of rare earths from chloride medium with mixtures of 1-phenyl-3-methyl-4-benzoyl-pyrazalone-5 and sec-octylphenoxyacetic acid

Synergistic Effect in the Solvent Extraction and Separation of Lanthanoids by 4-(4-Fluorobenzoyl)-3-methyl-1-phenyl-pyrazol-5-one in the Presence of Monofunctional Neutral Organophosphorus Extractants

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