Selective transport of scandium(III) across polymer inclusion membranes with improved stability which contain an amic acid carrier

Wataru Yoshida, Yuzo Baba, Fukiko Kubota, Spas D. Kolev, Masahiro Goto

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper reports on the development of a polymer inclusion membrane (PIM) for the selective separation of Sc(III) from other REM ions. A comparison is made of the performance of cellulose triacetate (CTA) based PIMs containing 2-thenoyltrifluoroacetone (HTTA), 2-ethylhexylphosphoric acid mono-2-ethylhexyl ester (PC-88A), N-[N,N-di(2-ethylhexyl) aminocarbonylmethyl]glycine (D2EHAG) or N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl]phenylalanine (D2EHAF) as the carrier in the extraction of Sc(III) from its sulfuric acid/ammonium sulfate buffer solutions. The potential of the PIM containing D2EHAF for the selective separation of Sc(III) from a feed solution containing similar concentrations of Y(III), La(III), Nd(III), and Dy(III) into a 0.5 mol L−1 sulfuric acid receiving solution has been demonstrated. In addition, the newly developed PIM containing D2EHAF exhibited excellent stability in 5 cycles of extraction and back-extraction of Sc(III) with insignificant deterioration in its performance. The results obtained in this study indicate that the molecular structure of the carrier has a strong influence on membrane stability, and that the introduction of a phenyl group into the carrier molecule results in a significant stability improvement.

Original languageEnglish
Pages (from-to)291-299
Number of pages9
JournalJournal of Membrane Science
Volume572
DOIs
Publication statusPublished - Feb 15 2019

Fingerprint

Scandium
scandium
Polymers
inclusions
membranes
Membranes
acids
Acids
polymers
sulfuric acid
Sulfuric acid
Thenoyltrifluoroacetone
ammonium sulfates
phenylalanine
Ammonium Sulfate
glycine
Molecular Structure
Phenylalanine
deterioration
cellulose

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

Cite this

Selective transport of scandium(III) across polymer inclusion membranes with improved stability which contain an amic acid carrier. / Yoshida, Wataru; Baba, Yuzo; Kubota, Fukiko; Kolev, Spas D.; Goto, Masahiro.

In: Journal of Membrane Science, Vol. 572, 15.02.2019, p. 291-299.

Research output: Contribution to journalArticle

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