Organic-solvent/Water/Ionic-liquid Triphasic System for the Fractional Extraction of Divalent Metal Cations

• TAKATA Takeshi

  Division of Material Chemistry, Graduate School of Natural Science and Technology, Kanazawa University

• HIRAYAMA Naoki

  Division of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa University

Abstract

A novel cyclohexane/water/ionic-liquid (1-butyl-3-methylimidazolium hexafluorophosphate, [bmim][PF6]) triphasic extraction system was studied for a possible fractional extraction of divalent metal cations with co-using 8-quinolinol (HQ) and tri-n-octylphosphine oxide (TOPO) as competitive extractants. In this system, Ni2+ was extracted into the [bmim][PF6] phase as a Q−-complex, whereas each of Mn2+, Zn2+, Cd2+ and Pb2+ was extracted into the cyclohexane phase as an ion-pair of a cationic TOPO-complex and PF6−. A suitable selection of extractants and ionic liquid can result in developing a powerful triphasic fractional extraction system.

Journal

• Analytical sciences

  Analytical sciences 25 (11), 1269-1270, 2009-11-10

  日本分析化学会 = The Japan Society for Analytical Chemistry

Details

• CRID: 1570854176038891008
• NII Article ID: 10026779720
• NII Book ID: AA10500785
• ISSN: 09106340
• Web Site: http://hdl.handle.net/2297/28461
• Text Lang: en
• Data Source:
  • CiNii Articles