Experience of Mastering, Industrial Exploitation, and Optimization of the Integrated Extraction–Precipitation Technology for Fractionation of Liquid High-Activity Wastes at Mayak Production Association

Logunov, M. V.; Voroshilov, Yu. A.; Бабаин, В. А.; Skobtsov, A.S.

doi:10.1134/s1066362220060028

Cited by 13 publications

(5 citation statements)

References 11 publications

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“…This phenomenon may be related to the mutual solubility of HNO 3 and F-3. 82,83 The effect of HNO 3 contact on surface tension is particularly evident for the BiPy-PhEt ligand, where the tension changes by more than 5 mN m À1 . In addition, the organic phase droplet becomes noticeably cloudy and appears to exhibit reduced stability within the scope of this experiment.…”

Section: The Interfacial Tension Measurementsmentioning

confidence: 99%

Kinetic features of solvent extraction by N,O-donor ligands of f-elements: a comparative study of diamides based on 1,10-phenanthroline and 2,2′-bipyridine

Konopkina,

Gopin,

Pozdeev

et al. 2024

Phys. Chem. Chem. Phys.

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Section: The Interfacial Tension Measurementsmentioning

confidence: 99%

Kinetic features of solvent extraction by N,O-donor ligands of f-elements: a comparative study of diamides based on 1,10-phenanthroline and 2,2′-bipyridine

Konopkina,

Gopin,

Pozdeev

et al. 2024

Phys. Chem. Chem. Phys.

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“…The effect of nitrobenzene and chloroform on the extraction ability of ligand Ia with respect to noble metals was studied (Table 2). The nitrobenzene is a structural analog of metanitrobenzotrifluoride (F-3), a popular industrial solvent [24,25]. As can be seen, the use of a 0.01 mol/L solution of ligand Ia in the above solvents as an extractant is quite selective for platinum-group metals (PGM).…”

Section: Extraction Of Noble Metals From Industrial Waste Solutionmentioning

confidence: 99%

Extraction of Palladium from Spent Nuclear Fuel Reprocessing Solutions

Safiulina,

Borisova,

Karpyuk

et al. 2024

Metals

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New solvent systems for selective separation of palladium from nuclear wastes represent a prospective way to reduce the total waste volume and induce this metal’s extraction. For this purpose, the potential of modern green solvent room-temperature ionic liquid was assessed with diamide-type extractants based on N-heterocycles and S-donating thiodiglicolic acid. The N-donating heterocyclic extractants demonstrate structure-dependent high selectivity toward palladium in the presence of various impurity metals (such as Zr, Cs, Sr, Mo, Ce, Fe, and Cr) from spent nuclear fuel. Palladium is extracted into the organic phase quite selectively with a separation factor greater than a thousand for all extractants. Ionic liquid media are capable of selective palladium separation from platinum group metals and synergetically increase the selectivity of the extractants.

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“…Due to their remarkable selectivity for cesium, strontium (with PEGs as synergists), and even lanthanides/minor actinides (either in synergic mixtures or after chemical modification), they have been shown to serve as a valuable tool for reducing nuclear waste volume and assisting in environmental remediation during nuclear accidents. Ongoing research in the field of radiochemistry focuses on cobalt bis(dicarbollide), with the aim of enhancing its extraction efficiency and optimizing its performance for various applications in nuclear waste treatment and management [140][141][142].…”

Section: Cobalt Bis(dicarbollide) As Extraction Agentmentioning

confidence: 99%

Chemistry of Carbon-Substituted Derivatives of Cobalt Bis(dicarbollide)(1−) Ion and Recent Progress in Boron Substitution

Pazderová,

Tüzün,

Bavol

et al. 2023

Molecules

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The cobalt bis(dicarbollide)(1−) anion (1−), [(1,2-C2B9H11)2-3,3′-Co(III)](1−), plays an increasingly important role in material science and medicine due to its high chemical stability, 3D shape, aromaticity, diamagnetic character, ability to penetrate cells, and low cytotoxicity. A key factor enabling the incorporation of this ion into larger organic molecules, biomolecules, and materials, as well as its capacity for “tuning” interactions with therapeutic targets, is the availability of synthetic routes that enable easy modifications with a wide selection of functional groups. Regarding the modification of the dicarbollide cage, syntheses leading to substitutions on boron atoms are better established. These methods primarily involve ring cleavage of the ether rings in species containing an oxonium oxygen atom connected to the B(8) site. These pathways are accessible with a broad range of nucleophiles. In contrast, the chemistry on carbon vertices has remained less elaborated over the previous decades due to a lack of reliable methods that permit direct and straightforward cage modifications. In this review, we present a survey of methods based on metalation reactions on the acidic C-H vertices, followed by reactions with electrophiles, which have gained importance in only the last decade. These methods now represent the primary trends in the modifications of cage carbon atoms. We discuss the scope of currently available approaches, along with the stereochemistry of reactions, chirality of some products, available types of functional groups, and their applications in designing unconventional drugs. This content is complemented with a report of the progress in physicochemical and biological studies on the parent cobalt bis(dicarbollide) ion and also includes an overview of recent syntheses and emerging applications of boron-substituted compounds.

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Experience of Mastering, Industrial Exploitation, and Optimization of the Integrated Extraction–Precipitation Technology for Fractionation of Liquid High-Activity Wastes at Mayak Production Association

Cited by 13 publications

References 11 publications

Kinetic features of solvent extraction by N,O-donor ligands of f-elements: a comparative study of diamides based on 1,10-phenanthroline and 2,2′-bipyridine

Kinetic features of solvent extraction by N,O-donor ligands of f-elements: a comparative study of diamides based on 1,10-phenanthroline and 2,2′-bipyridine

Extraction of Palladium from Spent Nuclear Fuel Reprocessing Solutions

Chemistry of Carbon-Substituted Derivatives of Cobalt Bis(dicarbollide)(1−) Ion and Recent Progress in Boron Substitution

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