Effect of the Structure of o-Methyleneoxyphenyldiphosphine Dioxides on Their Extractive Power and Selectivity in Nitric Acid Solutions

Туранов, А. Н.; Карандашев, В. К.; Федосеев, А. М.; Rodygina, N. I.; Баулин, В. Е.

doi:10.1007/s11137-005-0068-8

Cited by 8 publications

(8 citation statements)

References 15 publications

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“…These sensors are based on diphosphine dioxide (S3) and carbamoyl phosphine oxides (S8 and S14). These ligands are well known as powerful extracting agents for tetravalent actinides [27][28][29]. The sensors based on diamides of pyridine-2,6-dicarboxylic acid (S1, S5, S9, S11, S13) also demonstrate considerable sensitivity to plutonium, which is in agreement with the liquid extraction behavior of these ligands [30].…”

Section: Discussionsupporting

confidence: 59%

Plutonium (IV) Quantification in Technologically Relevant Media Using Potentiometric Sensor Array

Savosina

Agafonova-Moroz

Yaroshenko

et al. 2020

Sensors

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The quantification of plutonium in technological streams during spent nuclear fuel (SNF) reprocessing is an important practical task that has to be solved to ensure the safety of the process. Currently applied methods are tedious, time-consuming and can hardly be implemented in on-line mode. A fast and simple quantitative plutonium (IV) analysis using a potentiometric sensor array based on extracting agents is suggested in this study. The response of the set of specially designed PVC-plasticized membrane sensors can be related to plutonium content in solutions simulating real SNF-reprocessing media through multivariate regression modeling, providing 30% higher precision of plutonium quantification than optical spectroscopy.

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Section: Discussionsupporting

confidence: 59%

Plutonium (IV) Quantification in Technologically Relevant Media Using Potentiometric Sensor Array

Savosina

Agafonova-Moroz

Yaroshenko

et al. 2020

Sensors

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“…[4][5][6] The separation of Th, La, Eu ions was realised using the acidic extractant bis(2-ethylhexyl) phosphoric acid (DEHPA) in cyclohexane using 2-nitrobenzo-18-crown-6 [NB18 (6)]. 7 LIX-360 (HX) in kerosene and Versalic-10 was also used for extraction studies of U(VI).…”

Section: Ghag and Pawarmentioning

confidence: 99%

Extraction and separation of U(VI) and Th(IV) from hydrobromic acid media using Cyanex-923 extractant

Ghag¹,

Pawar²

2010

JSCS

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A systematic study of the solvent extraction of uranium(VI) and thorium(IV) from hydrobromic acid media was performed using the neutral phosphine oxide extractant Cyanex-923 in toluene. These metal ions were found to be quantitatively extracted with Cyanex-923 in toluene in the acidity range 5x10-5-1x10-4 M and 5x10-5-5x10-3 M, respectively, and they are stripped from the organic phase with 7.0 M HClO4 and 2.0- 4.0 M HCl, respectively. The effect of the equilibrium period, diluents, diverse ions and stripping agent on the extraction of U(VI) and Th(IV) was studied. The stoichiometry of the extracted species of these metal ions was determined based on the slope analysis method. The extraction reactions proceed by solvation and their probable extracted species found in the organic phase were UO2Br2•2Cyanex-923 and ThBr4•2Cyanex-923. Based on these results, a sequential procedure for their separation from each other was developed

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“…However, the extraction ability measured for molecules possessing as alkyl as aryl substituents is higher than for ligands, substituted only with alkyl fragments. Effect of the “anomalous aryl strengthening” was observed for different ligands: for bidentate organophosphorus compounds, carbamoylphosphineoxides, and diamides of heterocyclic dicarboxylic acids …”

Section: Introductionmentioning

confidence: 99%

Complexes of Uranyl Nitrate with 2,6-Pyridinedicarboxamides: Synthesis, Crystal Structure, and DFT Study

Alyapyshev

Бабаин

Ткаченко

et al. 2017

Z. Anorg. Allg. Chem.

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Effect of the Structure of o-Methyleneoxyphenyldiphosphine Dioxides on Their Extractive Power and Selectivity in Nitric Acid Solutions

Abstract: Extraction of trace amounts of Pu(IV), U(VI), Th(IV), Am(III), and REEs(III) from nitric acid solutions with o-methyleneoxyphenyldiphosphine dioxides with phenyl (

Cited by 8 publications

References 15 publications

Plutonium (IV) Quantification in Technologically Relevant Media Using Potentiometric Sensor Array

Plutonium (IV) Quantification in Technologically Relevant Media Using Potentiometric Sensor Array

Extraction and separation of U(VI) and Th(IV) from hydrobromic acid media using Cyanex-923 extractant

Complexes of Uranyl Nitrate with 2,6-Pyridinedicarboxamides: Synthesis, Crystal Structure, and DFT Study

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