Reaction of uranyl nitrate solutions with carboxylic acid cation exchange resins at 30, 40, and 500C

An investigation of the reaction of uranyl nitrate solution with Amberlite IRC-72 and with Duolite C-464 resin was conducted under equilibrium conditions for application to a high-temperature gas-cooled reactor fuel refabrication facility. Test series were conducted at constant nitrate ion concentrations in which the uranyl ion distribution between the phases was varied from values corresponding to approximately 10% resin loading to those for essentially complete resin loading. Equilibrium quotients, calculated as the metathetical exchange of uranyl ion for replaceable hydrogen in the resin phase, were calculated for each test series over the nitrate ion concentration range of 0.2 to 2.0 N and at temperatures of 30, 40, and 500C. These values varied with nitrate ion concentration but were relatively insensitive to changes in temperature