Similarity of rare earth extraction by acidic extractant bis(2-ethylhexyl) phosphate (HDEHP) supported on a dodecylamino-group-containing graft chain and by HDEHP dissolved in dodecane

Taka Aki Sasaki*, Shoichiro Uchiyama, Kunio Fujiwara, Takanobu Sugo, Daisuke Umeno, Kyoichi Saito

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Impregnation was used to affix bis(2-ethylhexyl) phosphate (HDEHP) to the dodecylamino group of a polymer chain grafted onto a 6-nylon fiber. The distribution coefficients of Nd and Dy ions on the fiber agreed well those for HDEHP in dodecane. HDEHP supported on the hydrophobic graft chain was found to behave similarly to HDEHP dissolved in organic solvent. Nd and Dy ions were successfully separated by elution chromatography with an HDEHP-impregnated fiber-packed bed, and leakage of HDEHP from the bed was found to be negligible during the chromatography.

Original languageEnglish
Pages (from-to)404-409
Number of pages6
Journalkagaku kogaku ronbunshu
Volume40
Issue number5
DOIs
Publication statusPublished - 2014 Sep 20
Externally publishedYes

Keywords

  • Dodecylamino group
  • Dysprosium
  • HDEHP
  • Impregnation
  • Neodymium
  • graft chain

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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