Multitracer study on permeation of rare earth elements through a supported liquid membrane

S. Ambe, K. Yashiki, H. Maeda, S. Enomoto, T. Ozaki, F. Ambe


10 被引用数 (Scopus)


Separation by means of supported liquid membranes is a useful method for the preparation and preconcentration of radioactive nuclides. The permeation of rare earth elements through a bis(2-ethylhexyl) hydrogen phosphate- decalin membrane supported on a microporous polytetrafluoroethylene sheet was studied using a multitracer containing radioactive nuclides of Sc, Zr, Nb, Hf, Ce, Pm, Gd, Yb, and Lu. Permeation rates of these elements from feed solutions of various acidity to receiving solutions of 0.5 mol · dm-3 HCl were determined simultaneously. The feed solution at pH 1.4 gave the highest permeation rate for Ce, Pm, and Gd, amounting to about 95% of permeation for Ce and Pm, 80% for Gd, and 10% for Yb in 21 h. Scandium, Zr, Nb, Hf, and Lu were not transported at all from the feed solution. Permeation rates of Yb and Lu from the feed solution at pH 1.4 to receiving solutions of 0.75, 1.0, 2.3, and 4.0 mol · dm-3 HCl increased with the concentration. The results obtained indicate that the light rare earth elements can be separated from the heavy ones by this method.

ジャーナルJournal of Radioanalytical and Nuclear Chemistry
出版ステータスPublished - 1998

ASJC Scopus subject areas

  • 分析化学
  • 原子力エネルギーおよび原子力工学
  • 放射線学、核医学およびイメージング
  • 汚染
  • 分光学
  • 公衆衛生学、環境および労働衛生
  • 健康、毒物学および変異誘発


「Multitracer study on permeation of rare earth elements through a supported liquid membrane」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。