Author:
Mukhachev A.P.,Yelatontsev D.O.,Kharitonova O.A.
Abstract
The article presents the results of industrial testing of processes for obtaining high-purity uranium compounds, including extraction, concentration, and purification of uranium from a mixture of nitric and phosphoric acids, solid-phase stripping, and reduction of U(VI) to U(IV). It is shown that the combination of three different extraction lines for the concentration and purification of uranium from accompanying valuable elements and radioactive isotopes makes it possible to obtain a natural uranium concentrate with a low content of impurities, which determine the economics of uranium hexafluoride production. The processes of drying and roasting of crystals of ammonium uranyl tricarbonate after solid-phase re-extraction in an atmosphere of reducing gases of ammonia and hydrogen make it possible to obtain uranium dioxide suitable for fluorination to obtain tetra and uranium hexafluoride.
Publisher
Problems of Atomic Science and Technology
Reference9 articles.
1. F. Habashi. Extractive metallurgy of rare earths // Canadian Metallurgical Quarterly. 2013, N 3, p. 224- 233.
2. D.A. Yelatontsev, A.P. Mukhachev, E.A. Kharitonova, et al. Development and industrial implementation of an economic scheme for extracting uranium from the iron ore the “Pervomayskoye” deposit // Bulletin NAGN. 2021, N 1, p. 6-15.
3. A.P. Mukhachev, D.O. Yelatontsev, O.A. Kharitonova. Physical and chemical foundations of the extraction refining of natural uranium // Problems of Atomic Science and Technology. 2022, N 1, p. 106-110.
4. V.A. Peganov, T.V. Molchanova, I.D. Akimova, et al. Technology for Obtaining Natural-Uranium Concentrates to ASTM C 967–08 Specifications // Atomic Energy. 2015, v. 117, p. 415-421.
5. A.M. Safiulina, D.V. Ivanets, E.M. Kudryavtsev, et al. Liquid- and Solid-Phase Extraction of Uranium(VI), Thorium(IV), and Rare Earth Elements(III) from Nitric Acid Solutions Using Acid-Type Phosphoryl-Containing Podands // Russian Journal of Inorganic Chemistry. 2019, v. 64, p. 536-542.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献