Synthesis of Macrocyclic Polyamides and their Solvent Extraction and Membrane Transport Abilities for Transition Metal Ions

Reizo Dohno, Jun-lchiro Satho and Akihiko Shimura

Faculty of Engineering, Himeji Institute of Technology, 2167 Shosha, Himeji-shi 671 22 Japan.

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ABSTRACT:

Macrocycyclic ligands L,-L4 were synthesised by the high dilution method. L1 and L3 extracted efficiently only Cu2+ ion with high selectives in the competitive extraction containing CO2+, Ni2+, Zn2+ ions. Further L3 extracted quantitively Cu2+ ion even from acidic aqueous solution. The transport ability of L1 and L2 through liquid membrane were examined for several transitional metal ions. Macrocycyclic

KEYWORDS:

Macrocycyclic; Cu2+; Membrane; Transport; Abilities