Basic research for construction of MA (III)-Ln (III) co-recovery process by solvent extraction at high TBP concentration

Iwamoto, Hibiki*; Sato, Hiromori*; Arai, Tsuyoshi*; Watanabe, So  ; Sano, Yuichi   

We investigated the effects of nitric acid, TBP and salting out reagent concentrations on the rare earth element (Ln (III)) extraction using TBP, which is inexpensive and has selective extractability. It was suggested that Ln (III) can be extracted by controlling the nitric acid and nitrate ion concentrations.