Extraction property of tetradodecyl-1,10-phenanthroline-2,9-diamide toward effective separation of minor actinides and lanthanides

Tsutsui, Nao  ; Nakase, Masahiko*; Ito, Sayumi*; Matsumura, Tatsuro  ; Takeshita, Kenji*

To separate minor acitinides from lanthanides in nitric acid, we focused on 1,10-phenanthroline-2,9-diamides (PTDAs) which consist of both soft and hard donor atoms. The present study employed a PTDA having dodecyl groups in N atoms of amides groups, TDdPTDA, and its extraction property toward Am, Cm, and Eu was studied.