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UDK: 621.039.7

2017. - V. 31. - N 10(191). - P. 7-9

P.G. Zelenin, E.A. Tyupina, V. V. Milyutin,

SYNTHESIS AND SORPTION PROPERTIES OF FINE FERROCYANIDE SORBENTS

During the research, several samples of fine composite ferrocyanide sorbents were synthesized and their sorption properties were analyzed. As a result, the sorbent with stable caesium in its composition exhibits greater selectivity towards caesium radionuclides. The value of its partition coefficient in strongly alkaline solution resulted to be three orders of magnitude higher than the others. A test was made to extract 137Сs from standard test solution of the residuum of a nuclear power station and from the solution with 1 mole per liter of sodium nitrat. Based on the results, the dissolution of the sorbent reduces the values of partition and decontamination coefficients for/in/with the application of small samples. The sorption properties of the sorbent with ferrocyanide nickel-caesium basis on the diatomite were compared with synthesized samples of the sorbent with Termoksid-35. The sorbent modified by stable caesium exhibits the better sorption properties towards caesium radionuclides.

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СИНТЕЗ И СОРБЦИОННЫЕ СВОЙСТВА МЕЛКОДИСПЕРСНЫХ ФЕРРОЦИАНИДНЫХ СОРБЕНТОВ

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Keywords

cesium   ferrocyanide sorbents   highly concentrated saline solution   selectivity   Termoksid-35   the decontamination factor   коэффициент очистки   селективность   сорбция   Термоксид-35   ферроцианидные сорбенты   цезий  


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