N. E. Borisova, P. I. Matveev, A. M. Safiulina, A. V. Ivanov, I. G. Tananaev
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引用次数: 0
摘要
摘要 这项工作研究了一系列 2,2-联吡啶-6,6-二羧酸二酰胺对高度放射性废物溶液中的镅、锔、镎、钍、轻镧系元素和一系列 d 元素的萃取特性。研究表明，二酰胺的萃取特性不仅取决于杂环框架的结构，还取决于远离氧中心位置的取代基的性质。在一系列萃取剂中，取代基的影响取决于其电子性质的不同，也取决于其体积和位置。在这项工作中，发现了分离 Am/Eu 对（SF 达 27）的有效和选择性萃取剂，并揭示了萃取剂结构与萃取金属离子效率之间的基本模式。
Separation of Spent Nuclear Fuel: Minor Actinide and Palladium Extraction by Heterocyclic Diamides
The extraction properties of a series of diamides of 2,2-bipyridine-6,6-dicarboxylic acids with respect to americium, curium, neptunium, thorium, light lanthanides and a series of d-elements present in solutions of highly radioactive wastes have been studied in this work. It has been shown that the extraction properties of diamides are determined not only by the structure of the heterocyclic framework, but also by the nature of substituents in positions remote from oxygen centers. The influence of substituents in a series of extractants is determined by differences in their electronic nature, and also depends on their volume and position. In the work, effective and selective extractants were found for the separation of the Am/Eu pair (SF up to 27), and fundamental patterns were revealed between the structure of the extractant and the efficiency of extracting metal ions.
期刊介绍：
Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.
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