1. Surface reactivity of uranium hexafluoride (UF 6 )
- Author
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Rachid Benzouaa, Mickael Achour, Laurent Jouffret, Ania Selmi, Bertrand Morel, André Hamwi, Aurélien Bock, Pierre Bonnet, Marc Dubois, Laurent Moch, Jean-Michel Hiltbrunner, AREVA NC, Groupe AREVA, AREVA, Institut de Chimie de Clermont-Ferrand (ICCF), and SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Nuclear fuel cycle ,Materials science ,General Chemical Engineering ,chemistry.chemical_element ,Uranium hexafluoride ,02 engineering and technology ,7. Clean energy ,01 natural sciences ,Corrosion ,chemistry.chemical_compound ,Impurity ,Specific surface area ,Intercalation ,[CHIM]Chemical Sciences ,Graphite ,Purification ,010405 organic chemistry ,Liquefaction ,General Chemistry ,Interface ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,chemistry ,Chemical engineering ,13. Climate action ,0210 nano-technology ,Carbon - Abstract
International audience; The present article reviews a selection of results obtained in the AREVA/CNRS/UCA joint research laboratory. It focuses on interfaces formed by uranium hexafluoride (UF6) with chemical filter (purification), carbon (UF6 storage), and metallic substrate (corrosion). As a matter of fact, along the nuclear fuel cycle, metallic surfaces of the fluorination reactors, cooling systems (for the liquefaction of UF6), and storage containers are in contact with UF6, either in the gas or in the liquid phase. For the removal of volatile impurities before the enrichment, surface of chemical filters with a high specific surface area must be enhanced for both selectivity and efficiency. To store depleted UF6 (238U), graphite intercalation compounds are proposed and preliminary results are presented.
- Published
- 2018
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