Rare earth metal extraction by liquid surfactant membranes containing a calixarene carboxylate derivative: permeation acceleration effect of sodium ions

Tatsuya Oshima, Takahiko Kakoi, Fukiko Kubota, Keisuke Ohto, Masahiro Goto, Fumiyuki Nakashio

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Calixarene carboxylate derivatives were used as a mobile carrier for rare earth permeation in a liquid surfactant membrane (LSM) system. The effect of alkali metal ions on the extraction behavior of rare earth metals in both liquid-liquid extraction and LSM systems has been studied. The addition of sodium ions considerably enhanced the extraction ability of rare earth metals in the extraction equilibrium. Furthermore, the presence of alkali metal ions in the material solution affected the rate of rare earth permeation in LSMs. The most accelerative transport of rare earth metals by LSMs was achieved by the addition of sodium ions. This acceleration effect of sodium ions was predominant in a tetracarboxylate calixarene whose cavity size just fits the ionic diameter of sodium ions. The sodium-loaded calix[4]arene derivative showed good performance as an effective mobile carrier for rare earth metals in the presence of sodium ions.

Original languageEnglish
Pages (from-to)1905-1917
Number of pages13
JournalSeparation Science and Technology
Volume33
Issue number13
DOIs
Publication statusPublished - Jan 1 1998

Fingerprint

Rare Earth Metals
Calixarenes
Surface-Active Agents
Permeation
Rare earths
Surface active agents
Sodium
Ions
Derivatives
Membranes
Liquids
Metals
Alkali Metals
Alkali metals
Metal ions

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Process Chemistry and Technology
  • Filtration and Separation

Cite this

Rare earth metal extraction by liquid surfactant membranes containing a calixarene carboxylate derivative : permeation acceleration effect of sodium ions. / Oshima, Tatsuya; Kakoi, Takahiko; Kubota, Fukiko; Ohto, Keisuke; Goto, Masahiro; Nakashio, Fumiyuki.

In: Separation Science and Technology, Vol. 33, No. 13, 01.01.1998, p. 1905-1917.

Research output: Contribution to journalArticle

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