Korean Journal of Chemical Engineering

, Volume 15, Issue 3, pp 324–329

Reactive extraction of lactic acid in a packed column

Article

Abstract

Reactive extraction of lactic acid was performed continuously in a packed column. The 0.6 M trioctylamine (TOA)/l-chlorobutane system was used as an extradant. The initial concentration of lactic acid was 10 wt% based on fermentation results. Raschig rings (5 and 7 mm diameter) were used to measure hydrodynamic data. Disperse phase holdup was nearly constant at Vd<0.8Vd,f.It can be seen that the flooding data obtained from this study were consistent with the literature. NTU and HTU were calculated. NTU varied from 1 to 2 and HTU from 96 cm to 44 cm with variation of Vd. The overall mass transfer coefficients of the continuous phase were nearly constant to 8.98x 10-5 mol/cm2s with variation of Vd.

Key words

Reactive Extraction Lactic Acid Packed Column Overall Mass Transfer Coefficient Disperse Phase Holdup Flooding 

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References

  1. Billet, R. and Mackowiak, J., “Hydraulic Behavior and Mass Transfer in an Extraction Column with Stacked Packings“,Ger. Chem. Eng.,3, 234 (1980).Google Scholar
  2. Billet, R., Mackowiak, J. and Pajak, M., “Hydraulics and Mass Transfer in Filled Tube Columns”,Chem. Eng. Process,19, 39 (1985).CrossRefGoogle Scholar
  3. Dell, F. R. and Pratt, H. R. C., “Part I: Flooding Rates for Packed Columns”,Trans. Instn. Chem. Engrs.,29, 89 (1951).Google Scholar
  4. Han, D. H. and Hong, W. H., “Reactive Extraction of Lactic Acid with Trioctylamine/Methylene Chloride/n-Hexane”,Sep. Sci. Technol,31(8), 1123 (1996).CrossRefGoogle Scholar
  5. Han, D. H. and Hong, W. H., “Water Enhanced Solubilities of Lactic Acid in Reactive Extraction Using Trioctylamine/ Various Active Diluents Systems”,Sep. Sci. Technol.,33 (2), 1123 (1998).Google Scholar
  6. Likidis, Z. and Schugerl, K., “Recovery of Penicillin by Reactive Extraction in Centrifugal Extractors”,Biotech. Bioeng.,30, 1032 (1987).CrossRefGoogle Scholar
  7. Kertes, A. S. and King, C. J., “Extraction Chemistry of Fermentation Product Carboxylic Acids”,Biotech. Bioeng.,28, 269 (1986).CrossRefGoogle Scholar
  8. Kumar, A. and Hartland, S., “Prediction of Drop Size, Dispersed-Phase Holdup, Slip Velocity and Limiting Throughputs in Packed Extraction Columns”,Trans I Chem E, part A,72, 89 (1994).Google Scholar
  9. Prochazka, J., Heyberger, A., Bizek, V., Kousova, M. and Bolaufova, E., “Amine Extraction of Hydroxycarboxylic Acids. 2. Comparison of Equilibria for Lactic, Malic, and Citric Acids”,Ind. Eng. Res. Chem.,33, 1565 (1994).CrossRefGoogle Scholar
  10. Reschke, M. and Schugerl, K., “Reactive Extraction of Penicillin III: Kinetics”,Chem. Eng. J.,28, B21 (1984).CrossRefGoogle Scholar
  11. Tamada, J.A., Kertes, A. S. and King, C.J., “Extraction of Carboxylic Acids with Amine Extractants. 1. Equilibrium and Law of Mass Action Modeling”,Ind. Eng. Res. Chem.,29, 1319 (1990).CrossRefGoogle Scholar

Copyright information

© Korean Institute of Chemical Engineering 1998

Authors and Affiliations

  1. 1.Department of Chemical EngineeringKorea Advanced Institute of Science and TechnologyTaejonKorea
  2. 2.Hyundai Engineering CO., LTD.SeoulKorea

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