Gas-phase conversion of U, Sr, Mo, and Zr oxides into water-soluble compounds in an HNO 3  (vapor)–air atmosphere

S. A. Kulyukhin; Yu. M. Nevolin; N. A. Konovalova; L. V. Mizina; A. V. Gordeev

doi:10.1134/S1066362216020053

Gas-phase conversion of U, Sr, Mo, and Zr oxides into water-soluble compounds in an HNO₃ (vapor)–air atmosphere

Authors: Kulyukhin S.A.¹, Nevolin Y.M.¹, Konovalova N.A.¹, Mizina L.V.¹, Gordeev A.V.¹
Affiliations:
1. Frumkin Institute of Physical Chemistry and Electrochemistry
Issue: Vol 58, No 2 (2016)
Pages: 131-143
Section: Article
URL: https://ogarev-online.ru/1066-3622/article/view/223350
DOI: https://doi.org/10.1134/S1066362216020053
ID: 223350

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Abstract

Gas-phase conversion of U₃O₈, MoO₃, SrO, ZrO₂, and their mechanical mixtures into water-soluble compounds in an HNO₃ (vapor)–air atmosphere was studied. In the course of the gas-phase conversion, U₃O₈ and SrO transform into water-soluble compounds (nitrates, hydroxynitrates), 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 HNO₃ (vapor)–air atmosphere was demonstrated.