TITLE:
Gas-Phase Conversion of the U(VI), Sr, Mo, and Zr Oxides in Nitrating Atmosphere
AUTHORS:
Sergey A. Kulyukhin, Yurii M. Nevoin, Natalya A. Konovalova, Andrey V. Gordeev, Alexey A. Bessonov, Margarita P. Gorbacheva, Andrey Yu. Shadrin, Konstantin N. Dvoeglazov
KEYWORDS:
Metal Oxides, Nitrates, Gas-Phase Conversion, Nitrogen Oxides
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.4 No.8,
August
15,
2016
ABSTRACT: The gas-phase conversion of U3O8, MoO3, SrO, and their mechanical mixtures, and also of ZrO2 into water-soluble compounds in the atmosphere of (NOx + vapor H2O) or HNO3 (vapor) was studied. In the course of gas-phase conversion, U3O8 and SrO transform into water-soluble compounds (nitrates, hydroxonitrates), whereas MoO3 and ZrO2 undergo no changes. The principal possibility of separating U from Mo and Zr by gas-phase conversion of the oxides in the atmosphere of (NOx + vapor H2O) or HNO3 (vapor) was demonstrated.