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In recent years, a great deal of interest has been focused on nitrogen-containing extractants for the separation of actinides from lanthanides. In this study, we synthesized a polyazamacrocycle-type C8-cyclen ligand comprising four tertiary alkyl amino groups, for the extraction of Am3+ and Eu3+. The C8-cyclen demonstrated a weak ability to extract and separate Am3+ and Eu3+ that increased with the increasing “softness” of the aqueous anions. The extraction behavior of Am3+ and Eu3+ indicated coordination interactions between the C8-cyclen and the Am3+ and Eu3+ ions. The suppression of Am3+ or Eu3+ extraction by acid depended on the media anions involved.
In this years, a great deal of interest has been focused on nitrogen-containing extractants for the separation of actinides from lanthanides. In this study, we synthesized a polyazamacrocycle-type C8-cyclen ligand comprising four tertiary alkyl amino groups, for the extraction of The C8-cyclen demonstrated a weak ability to extract and separate Am3 + and Eu3 + that increased with the increasing “softness” of the aqueous anions. The extraction behavior of Am3 + and Eu3 + indicated coordination interactions between the C8-cyclen and the Am3 + and Eu3 + ions. The suppression of Am3 + or Eu3 + extraction by acid depended on the media anions involved.