Results 21 to 30 of about 3,656,066 (246)
Minimization of actinide waste by multi-recycling of thoriated fuels in the EPR reactor
EPJ Web of Conferences, 2012 The multi-recycling of innovative uranium/thorium oxide fuels for use in the European Pressurized water Reactor (EPR) has been investigated. If increasing quantities of 238U, the fertile isotope in standard UO2 fuel, are replaced by 232Th, then a greater
Nuttin A. +8 more
doaj +1 more source
Uranium Mineralization of Fossil Wood
Geosciences, 2020 Uraniferous sandstone deposits commonly resulted when uranium in groundwater precipitated in reducing environments caused by degradation of ancient wood and organic debris.
George E. Mustoe
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The oxidation of uranium tetrachloride
Journal of Inorganic and Nuclear Chemistry, 1966 Abstract The oxidation of uranium tetrachloride was investigated by thermo-analytical and X-ray diffraction methods. It proceeds in the presence of oxygen at atmospheric pressure via uranyl chloride (UO2Cl2) as an intermediate product: UCl 4 + O 2 → UO 2 2 Cl 2 + CL 2 3 UO 2 Cl 2 + O 2
Kanellakopulos, B., Parthey, H.
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Nuclear Fuel Cycle Front End Chemistry
CHIMIA, 2005 A broad description of the main chemical processes involved at each main step of the nuclear fuel cycle, from uranium mining to nuclear grade uranium oxide preparation for nuclear fuel fabrication is provided.
Patrick Blanpain +2 more
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Recovery and Purification of Uranium from Rejected-Prototype Fuel Plates with Use Innovative Method [PDF]
مجله علوم و فنون هستهای, 2019 In nuclear research reactor fuel producing factories, in order to recover uranium from aluminum plate scraps of oxide fuel, the dissolving process in the caustic soda and nitric acid and, ultimately, the solvent extraction process for the purification of
K Fatemi +3 more
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Solution Synthesis of Actinide Chalcogenide and Oxychalcogenide Nanoparticles
Angewandte Chemie, EarlyView.We report the synthesis of UOS, UOSe, and US2 nanoparticles under colloidal conditions. The magnetic properties were measured of all three materials and compared to prior studies of UO2 nanoparticles. Nanoparticle phases were determined using powder diffraction, and size by transmission electron microscopy.
Cheyenne Orozco +7 more
wiley +2 more sources
Angewandte Chemie, EarlyView.Masked divalent yttrium and gadolinium dinitrogen complexes mediate the fragmentation of white phosphorus, converting P4 into discrete dimetallic complexes of [P4]2– and [P2]2– ligands, and an unprecedented monatomic P2– radical ligand. Structural, spectroscopic, magnetic, and DFT studies reveal insight into the bonding between these unusual Pn units ...
Arpan Mondal, Richard A. Layfield
wiley +2 more sources
Progress in Chlorination and Dissolution Technology of Oxides of Uranium and Plutonium
He huaxue yu fangshe huaxue, 2022 The dissolution process of oxides is a key step in the pyrochemical process of spent oxide fuel by electrolyzing in molten salt. The dissolved products will provide feeds for subsequent separation and recovery of U and Pu.
MENG Zhao-kai +6 more
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Reprocessing of simulated voloxidized uranium–oxide SNF in the CARBEX process
Nuclear Engineering and Technology, 2019 The concept of a new method, the CARBEX (CARBonate EXtraction) process, was proposed for reprocessing of spent uranium oxide fuel. The proposed process is based on use of water solutions of Na2CO3 or (NH4)2CO3 and solvent extraction (SE) by the ...
A. V. Boyarintsev +5 more
semanticscholar +1 more source
The Journal of Physical Chemistry, 1957 The results of kinetic, x-ray, and density studies of the UO/sub 2/ oxidation products indicate that UO/sub 2/ oxiddzes by the immediate formation of a surface gamma -tetragonal U/sub 3/O/sub 7/ phase. This process is controlled by the diffusion of oxygen through the second phase.
P. E. Blackburn +2 more
openaire +3 more sources