Volume 5, 2021

Radiochemistry

PRECIPITATIVE RE-EXTRACTION OF URANIUM(VI) FROM ORGANIC SOLUTIONS OF METHYLTRIOCTILAMMONIUM URANYL PEROXO-CARBONATE COMPLEXES

S.O. Frankiv, A.V. Boyarintsev, S.I. Stepanov

Pages: 78-83

DOI: 10.21175/RadProc.2021.15

The article discusses the results of the uranium(VI) re-extraction(stripping) from the methyltrioctilammonium organic phase loaded by uranium(VI) peroxo-carbonate species using ammonium carbonate and ammonium bicarbonate aqueous solutions or gaseous carbon dioxide. Conditions for 97–99% re-extraction of uranium(VI) to obtain crystalline ammonium uranyl carbonate with structure (NH4)4[UO 2(CO3)3] were determined.

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S.O. Frankiv, A.V. Boyarintsev, S.I. Stepanov, "Precipitative re-extraction of uranium(vi) from organic solutions of methyltrioctilammonium uranyl peroxo-carbonate complexes", RAD Conf. Proc, vol. 5, 2021, pp. 78-83, http://doi.org/10.21175/RadProc.2021.15