Transport of metals through gelled supported liquid membranes containing carrier

L. Bromberg, G. Levin, O. Kedem

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

The transport phenomena of metals through gelled supported liquid membranes (GSLMs) containing di(2-ethylhexyl)dithiophosphoric acid (DTPA) as a carrier have been studied. The gelled phase is composed of poly(vinyl chloride) PVC) and ortho-nitrophenyloctylether (NPOE). It was shown that the best method to obtain an optimal GSLM is to dry the membrane in water-free atmosphere. The maximum transfer rates of silver, mercury and cadmium under optimal stripping conditions were measured to be (3-6) × 10-10 mol/cm2-sec. The effective diffusion coefficients decreased with the increase of PVC and DTPA concentrations.

Original languageEnglish
Pages (from-to)41-50
Number of pages10
JournalJournal of Membrane Science
Volume71
Issue number1-2
DOIs
StatePublished - 3 Jul 1992
Externally publishedYes

Keywords

  • carrier
  • di(2-ethylhexyl)dithiophosphoric acid
  • gels
  • metal transport
  • supported liquid membranes

ASJC Scopus subject areas

  • Biochemistry
  • General Materials Science
  • Physical and Theoretical Chemistry
  • Filtration and Separation

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