Kinetic investigation of the hydrolysis of uranium hexafluoride gas

Richards, Jason M.; Martin, Leigh R.; Fugate, Glenn A.; Cheng, Meng‐Dawn

doi:10.1039/d0ra05520d

Cited by 11 publications

(17 citation statements)

References 14 publications

(24 reference statements)

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“…Their observations are consistent with the conclusion of Rolison et al that the parent uranium ore is primarily responsible for 98 Mo variations in UOCs and that fractionation during UOC production will likely alter the 98 Mo composition relative to the parent uranium ore. However, the effect of specific UOC production conditions on the 98 Mo composition is not fully known at this time. Overall, the use of the molybdenum isotope composition, in combination with other trace elements or isotopic data, to help ascertain the origin of UOCs appears promising.…”

Section: Rolison Et Al and Migeon Et Al Recently Investigated The Mol...supporting

confidence: 90%

“…48 They found that the 98 Mo composition among the UOCs varied with a range consistent with variations in the 98 Mo composition for natural materials. The variation in the 98 Mo composition for UOCs can arise from variations of 98 Mo in the parent uranium ore, fractionation of molybdenum isotopes during the production of UOCs, or contamination from a molybdenum source during production. While they were unable to assess the role of molybdenum contamination, the variation of 98 Mo in UOCs fell within the range observed for molybdenite minerals, indicating that variations of 98 Mo in the parent uranium ore is primarily responsible for the variations observed in UOCs.…”

Section: Rolison Et Al and Migeon Et Al Recently Investigated The Mol...mentioning

confidence: 71%

“…While they were unable to assess the role of molybdenum contamination, the variation of 98 Mo in UOCs fell within the range observed for molybdenite minerals, indicating that variations of 98 Mo in the parent uranium ore is primarily responsible for the variations observed in UOCs. However, comparing the parent uranium ore with its corresponding UOC, they determined that fractionation occurred during production, resulting in a greater 98 Mo composition in the UOC. Thus, they concluded that both variation in the 98 Mo composition of uranium ore and fractionation during the production of UOCs contribute to the overall variation of 98 Mo in UOCs.…”

Section: Rolison Et Al and Migeon Et Al Recently Investigated The Mol...mentioning

confidence: 80%

“…The variation in the 98 Mo composition for UOCs can arise from variations of 98 Mo in the parent uranium ore, fractionation of molybdenum isotopes during the production of UOCs, or contamination from a molybdenum source during production. While they were unable to assess the role of molybdenum contamination, the variation of 98 Mo in UOCs fell within the range observed for molybdenite minerals, indicating that variations of 98 Mo in the parent uranium ore is primarily responsible for the variations observed in UOCs. However, comparing the parent uranium ore with its corresponding UOC, they determined that fractionation occurred during production, resulting in a greater 98 Mo composition in the UOC.…”

Section: Rolison Et Al and Migeon Et Al Recently Investigated The Mol...mentioning

confidence: 99%

“…It has been suggested the hydrolysis reaction proceeds in two steps, eqs 5 and 6, forming an intermediate uranium oxytetrafluoride (UOF 4 ); however, the role of UOF 4 in this process remains debated. 97,98 Recently, Wagner et al reportedly identified UOF 4 in particulate matter generated from reaction conditions with insufficient water for complete hydrolysis of UF 6 . 99 However, compared to the reference Fourier transform infrared (FTIR) spectrum for UOF 4 , their FTIR spectra do not strongly support this observation.…”

Section: Rolison Et Al and Migeon Et Al Recently Investigated The Mol...mentioning

confidence: 99%

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Progress in Uranium Chemistry: Driving Advances in Front-End Nuclear Fuel Cycle Forensics

et al. 2021

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The front-end of the nuclear fuel cycle encompasses several chemical and physical processes used to acquire and prepare uranium for use in a nuclear reactor. These same processes can also be used for weapons or nefarious purposes, necessitating the need for technical means to help detect, investigate, and prevent the nefarious use of nuclear material and nuclear fuel cycle technology. Over the past decade, a significant research effort has investigated uranium compounds associated with the front-end of the nuclear fuel cycle, including uranium ore concentrates (UOCs), UF 4 , UF 6 , and UO 2 F 2 . These efforts have furthered uranium chemistry with an aim to expand and improve the field of nuclear forensics. Focus has been given to the morphology of various uranium compounds, trace elemental and chemical impurities in process samples of uranium compounds, the degradation of uranium compounds, particularly under environmental conditions, and the development of improved or new techniques for analysis of uranium compounds. Overall, this research effort has identified relevant chemical and physical characteristics of uranium compounds that can be used to help discern the origin, process history, and postproduction history for a sample of uranium material. This effort has also identified analytical techniques that could be brought to bear for nuclear forensics purposes. Continued research into these uranium compounds should yield additional relevant chemical and physical characteristics and analytical approaches to further advance front-end nuclear fuel cycle forensics capabilities.

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Section: Rolison Et Al and Migeon Et Al Recently Investigated The Mol...supporting

confidence: 90%

Section: Rolison Et Al and Migeon Et Al Recently Investigated The Mol...mentioning

confidence: 71%

Section: Rolison Et Al and Migeon Et Al Recently Investigated The Mol...mentioning

confidence: 80%

Section: Rolison Et Al and Migeon Et Al Recently Investigated The Mol...mentioning

confidence: 99%

Section: Rolison Et Al and Migeon Et Al Recently Investigated The Mol...mentioning

confidence: 99%

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Progress in Uranium Chemistry: Driving Advances in Front-End Nuclear Fuel Cycle Forensics

et al. 2021

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Cell design for laser-induced breakdown spectroscopy measurements on reactive gas samples

Peruski

Davis

Chan

et al. 2022

Journal of Fluorine Chemistry

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Digital twin challenges and opportunities for nuclear fuel manufacturing applications

Bandala,

Chard,

Cockbain

et al. 2024

Nuclear Engineering and Design

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Kinetic investigation of the hydrolysis of uranium hexafluoride gas

Abstract: Direct observation of the hydrolysis reaction kinetics of gaseous UF6 have been measured under low-pressure conditions.

Cited by 11 publications

References 14 publications

Progress in Uranium Chemistry: Driving Advances in Front-End Nuclear Fuel Cycle Forensics

Progress in Uranium Chemistry: Driving Advances in Front-End Nuclear Fuel Cycle Forensics

Cell design for laser-induced breakdown spectroscopy measurements on reactive gas samples

Digital twin challenges and opportunities for nuclear fuel manufacturing applications

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