Uranium oxides in ores and spent fuels

The storage of spent fuel element assemblies is difficult because the temperature of the assemblies and of their surroundings is considerably greater than ambient. It should be possible to store suitably encased spent fuel rods safely in dry, stable environments for any desired length of time; however, this is not possible where mechanical disturbances can lead to the breakage of fuel element containers and where aqueous solutions can gain access to the fuel elements. This paper discussed the effects related to the solution of uranium oxide fuel pellets. Data was given for dissolution of uranium oxide pellets at low values of the oxygen fugacity. Discussion of storage in salt domes was included. Leaching, with Hanford ground water, the spent fuel pellets was discussed. 4 figures