A Model for Emulsion Liquid Membrane Extraction of Organic Acids

  • J. B. Chaudhuri
  • D. L. Pyle


Studies on the batch extraction of lactic acid using an emulsion liquid membrane system are reported; the effects of the surfactant, Span 80, and tertiary amine carrier, Alamine 336, on the system stability, kinetics and swelling are examined. A new quantitative model is developed and tested to describe the facilitated extraction of lactic acid using Alamine 336. The stoichiometry of the facilitated reaction is elucidated. This model also accounts for the convective solute transport which results from emulsion swelling. Very good agreement is observed between the model and experimental results; the variation in extraction with carrier concentration is successfully predicted.


Lactic Acid Liquid Membrane Membrane Phase Lactic Acid Concentration External Phase 
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Copyright information

© SCI 1990

Authors and Affiliations

  • J. B. Chaudhuri
    • 1
  • D. L. Pyle
    • 1
  1. 1.Centre for Biochemical EngineeringUniversity of BirminghamBirminghamUK

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