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Theses

Purification de l'hexafluorure d'uranium

Abstract : Uranium hexafluoride, which chemical formula is UF 6 , is a key compound of nuclear fuel cycle due to its use during isotopic enrichment process. Nethertheless, pollutants melted with UF 6 have to be removed in order to ensure a nuclear purity fuel. In this manuscript, the reactions occurring between pollutants and chemical filters selected for this application are studied. Then, the reactivity in liquid UF 6 is also examined with the aim of being close to the industrial process. The regeneration of adsorbents is investigated so that chemical filter can be used for several purification cycles. The performances (sorption rate of pollutants, purifying during recycling step) are evaluated before simulations at industrial scale.
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Submitted on : Monday, July 25, 2022 - 5:11:23 PM
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2017CLFAC009_HILTBRUNNER.pdf
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  • HAL Id : tel-03738088, version 1

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Jean-Michel Hiltbrunner. Purification de l'hexafluorure d'uranium. Matériaux. Université Clermont Auvergne [2017-2020], 2017. Français. ⟨NNT : 2017CLFAC009⟩. ⟨tel-03738088⟩

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