Synergistic Effects of Tris(4-isopropyltropolonato)cobalt(III) on the Extraction of Lanthanum(III) and Lutetium(III) with Acetylacetone into Benzene

• EBISAWA Michie

  College of Science, Ibaraki University

• OHASHI Akira

  College of Science, Ibaraki University

• IMURA Hisanori

  College of Science, Ibaraki University Graduate School of Natural Science & Technology, Kanazawa University

• OHASHI Kousaburo

  College of Science, Ibaraki University

Abstract

The synergistic effects of tris(4-isopropyltropolonato)cobalt(III) (Co(ipt)₃) on the extraction of lanthanum(III) and lutetium(III) with acetylacetone (Hacac) into benzene were investigated. A synergistic enhancement of the extraction of trivalent lanthanides was found in the presence of Co(ipt)₃. From equilibrium analysis, it was found that Ln(acac)₃ forms a 1:1 adduct, i.e., a binuclear complex, with the Co(ipt)₃ in benzene. The adduct formation constants (β_s,1) of Ln(acac)₃ with Co(ipt)₃ in benzene were determined, discussed, and compared with those reported previously. The β_s,1 values in the Ln(acac)₃ system became smaller than those in the Ln(tta)₃ system. The Lewis acidity of the Ln chelate had a significant effect on the adduct formation in the La(III) system and a relatively small effect in the Lu(III) system.

Journal

• Solvent Extraction Research and Development, Japan

  Solvent Extraction Research and Development, Japan 20 (0), 131-136, 2013

  Japan Association of Solvent Extraction

Keywords

• General Chemical Engineering
• General Chemistry

Details

• CRID: 1390282680720076928
• NII Article ID: 130005056959
• NII Book ID: AA11114608
• DOI: 10.15261/serdj.20.131
• ISSN: 21884765
• ISSN: 13417215
• NDL BIB ID: 024739209
• Web Site: http://id.ndl.go.jp/bib/024739209
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024739209
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed