Conversion of uranium hexafluoride and recovery of uranium from ionic liquids
Described are methods for the recovery of uranium from uranium hexafluoride dissolved directly into ionic liquids.
Engineering topics
Publications and source records attributed to Hatchett, David W..
Described are methods for the recovery of uranium from uranium hexafluoride dissolved directly into ionic liquids.
Described are methods for the recovery of uranium from uranium hexafluoride dissolved directly into ionic liquids.
We report the thermal behavior of (NH 4 ) 2 [ReF 6 ] was evaluated in an alumina crucible using simultaneous thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) in an argon atmosphere. The TGA of (NH 4 ) 2 [ReF 6 ] is characterized by a single step decomposition while the DSC exhibits two exothermic peaks. Powder X-ray diffraction (PXRD) analyses of the decomposition products show the presence of a mixed ReO 2 phase. The formation of ReO2 is driven by the reaction of (NH 4 ) 2 [ReF 6 ] with Al 2 O 3 at the grain boundary of the alumina crucible. XRD peak broadenings due to the combined effect of crystallite size and lattice strain were evaluated using both Scherrer and Williamson-Hall methods.