Interaction of depleted uranium tetrafluoride with silica

The handling of spent uranium hexafluoride is extensively explained in the literature, and some developments have been tested on commercial scales. The reduction of depleted uranium hexafluoride by unsaturated halogen derivatives of organic compounds to depleted uranium tetrafluoride and subsequent...

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Bibliographic Details
Published in:Atomic energy (New York, N.Y.) N.Y.), 2012-07, Vol.112 (3), p.226-229
Main Authors: Magomedbekov, E. P., Chizhevskaya, S. V., Davydov, A. V., Zhukov, A. V., Klimenko, O. M., Sarychev, G. A., Kudryavtsev, E. M.
Format: Article
Language:English
Subjects:
Fluorides
Gases
Hadrons
Heavy Ions
Laboratories
Morphology
Nuclear Chemistry
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Radioactive wastes
Reagents
Scientific imaging
Silica
Silicon
Studies
Uranium
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Summary:The handling of spent uranium hexafluoride is extensively explained in the literature, and some developments have been tested on commercial scales. The reduction of depleted uranium hexafluoride by unsaturated halogen derivatives of organic compounds to depleted uranium tetrafluoride and subsequent solid-phase interaction of the tetrafluoride with silica make it possible to obtain together with uranium oxides highly pure silicon tetrafluoride. In a study by means of differential thermal analysis combined with mass-spectrometry of the interaction of depleted uranium tetrafluoride produced in Russia with different crystalline and x-ray amorphous forms of silica, it was established that the rate of heating of a mixture has only a very weak effect on the process: as this rate decreases from 25 to 5C/min, the interval where SiF4 precipitates shifts into the low-temperature region by only 2030C.
ISSN:1063-4258
1573-8205
DOI:10.1007/s10512-012-9549-y