Повышение эффективности процесса реэкстракции урана за счет применения карбамида

Abstract

The process of uranium stripping from TBP by urea solutions was investigated. The uranium stripping increases with increasing urea content and rising temperature. The urea concentration in the solution should be above 6 mol/L to achieve efficient single-stage stripping of uranium from a loaded organic phase (more than 99%). Strip product solutions containing 200-240 g/L uranium were prepared by stripping using highly concentrated urea solutions at an organic/aqueous phase volume ratio of 4-8.