D,L-lactic acid and D,L-alanine enantioseparation by membrane process

Péter Hadik, Lujza P. Szabó, Endre Nagy

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48 Citations (Scopus)


D,L-lactic acid and D,L-alanine solutes resolution was studied in supported liquid membrane using a polypropylene hollow-fiber module. The enantioselective transport of solutes was facilitated by N-3,5-dinitrobenzoyl-L-alanine-octylester chiral selector, which was dissolved in toluene organic solvent. The maximum D,L-lactic acid separation factor achieved was 2 and that for the D,L-alanine was 1.75, in both cases the D-enantiomer flux was preferred.

Original languageEnglish
Pages (from-to)193-198
Number of pages6
Issue number1-3
Publication statusPublished - Sep 10 2002



  • D,L-alanine
  • D,L-lactic acid
  • Enantioseparation
  • Hollow fiber
  • Supported liquid membrane

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Water Science and Technology
  • Mechanical Engineering

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