Solvent Extraction Concentrating of Palladium by Organic Sulphides from Acidic Nitrate-Nitrite Solutions for Increasing Ecological Safety of the Utilization of Spent Nuclear Fuel
VLADIMIR V. TATARCHUK1, IRINA A. DRUZHININA1, TAMARA M. KORDA1, EDOUARD V. RENARD2and VLADISLAV G. TORGOV1
1Nikolaev Institute of Inorganic Chemistry,
Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 3, Novosibirsk 630090 (Russia)
E-mail: tat@che.nsk.su
2Bochvar All-Russian Research Institute of Inorganic Materials, Ul. Rogova 5, Moscow 123060 (Russia)
Pages: 547-555
Abstract
In connection with search for methods to recover fission palladium from highly active liquid wastes from spent nuclear fuel reprocessing, new results were obtained on palladium solvent extraction by organic sulphides from model (in the absence of radiation) nitrate-nitrite solutions containing also a number of accompanying elements (Ag, Ru, Rh, Te, Se, Sb, Mo, Zr, Fe, Ni). It is shown that within the investigated ranges of the acidity of aqueous phase (0.5
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