An assessment of the multi-stage counter current extraction of TRUs from spent molten salt, into liquid metal

A calculation procedure for the multi-stage counter current reductive extraction was described and its characteristics were investigated. The calculations were made with the total chlorine balance approximation with the same initial Li concentration in Cd for the corresponding cases. Higher separation performance of Bi-Li extraction as well as difference of separation behavior was also evaluated. It was found that the total chlorine balance approximation gave slightly lower recovery ratio. It was confirmed that the Nd extracted at the second stage worked as a mild reducing agent to extract Americum in the first stage.