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Mass-transfer modeling of permeation of lactic acid across amine-mediated supported liquid membranes

  • Ruey Shin Juang*
  • , Shwu Hwa Lee
  • , Ruey Chang Shiau
  • *Corresponding author for this work
  • Yuan Ze University

Research output: Contribution to journal › Journal Article › peer-review

23 Scopus citations

Abstract

The permeation of lactic acid from aqueous solutions through a supported liquid membrane containing tri-n-octylamine as mobile carrier was studied experimentally and theoretically. The strip phase was either Na2CO3 solution or deionized water. The membrane support was Durapore hydrophobic GVHP film. A permeation model was proposed considering aqueous film diffusion, interfacial chemical reaction, and membrane diffusion. The calculated rates were found to agree reasonably with the measured ones (average standard error, 13%). Under the ranges investigated, it was shown that the present permeation process was governed by mixed interfacial reaction and membrane diffusion.

Original languageEnglish
Pages (from-to)231-239
Number of pages9
JournalJournal of Membrane Science
Volume137
Issue number1-2
DOIs
StatePublished - 24 12 1997
Externally publishedYes

Keywords

  • Lactic acid
  • Mass-transfer modeling
  • Supported liquid membrane
  • Tri-n-octylamine

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