Abstract
It is well known that the production of transplutonium (TPE) is associated with the processing of highly radioactive materials containing a mixture of several elements formed in nuclear reactors as a result of neutron irradiation of plutonium and heavier elements. High degrees of purification from radioactive isotopes and inert admixtures are necessary when isolating TPE from various natural objects and highly radioactive materials, including technological solutions for their subsequent determination. The choice of methods of TPE isolation and separation is determined by the chemical composition of the analyzed solution and by the purpose of the work. For group removal of actinides from the solutions of different composition including highly radioactive wastes (HRW) from nuclear fuel reprocessing we will consider the application of bidentate neutral organophosphorus compounds, extraction from alkaline solutions and the use of two phase water-poly(ethylene glycol)-salt systems. The counter-current chromatography (CCC) is more effective for the group separation of actinides and lanthanides. The best separation of transplutonium elements (TPE) is obtained by using methods based on the various oxidation states of the separated elements and by membrane extraction.
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References
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Myasoedov, B.F., Chmutova, M.K. (1995). New Methods of Transplutonium Elements Isolation, Purification, and Separation from Rare Earth Elements and Selected Fission Products. In: Nash, K.L., Choppin, G.R. (eds) Separations of f Elements. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-1406-4_3
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DOI: https://doi.org/10.1007/978-1-4899-1406-4_3
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