M. V. Mamchich, A. A. Naumov, N. D. Goletskii, E. A. Puzikov, A. N. Viznyi>, A. V. Bizin, A. I. Medvedeva
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引用次数: 0
Abstract
Centrifugal contactor rig trials of the partitioning flowsheet were carried out using simulated and real high level waste solutions obtained by reprocessing of WWER-100 spent nuclear fuel with burn-up of 47 MW day/t. 40% TBP in Isopar M was used as a solvent with magnesium nitrate as a salting-out agent. Complete removal of Cs, Sr, Zr, and Mo to raffinate was achieved. Rare earth elements, Am and Cm were totally concentrated in TPE and REE product. Comparison of the results of this work and previous trials with iron(III) nitrate as a salting-out agent [1] demonstrated that the use of magnesium nitrate instead of iron(III) nitrate resulted in higher decontamination factors of TPE and REE fraction from Cs (about 10 000) while in the case of iron(III) nitrate they are >7500.
期刊介绍：
Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.
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