Production of Lactic Acid by Ion Substitution in 3-Compartment Electrodialysis and Comparing of Stack Arrangements

Authors

  • Marek Doležel
    Affiliation
    MemBrain s.r.o.
  • Lubomír Machuča
https://doi.org/10.3311/PPch.7530

Abstract

Electrodialysis (ED) is a process which is to transport anions and cations selectively and remove them from solutions and concentrate to the other ones. In three-compartment electrodialysis it is possible to immobilize required ions in certain ED compartment and change their counterions. In laboratory electrodialysis unit sodium lactate model solution was tested for conversion onto lactic acid via ion substitution. Four different arrangement of streams and membrane arrangement were compared in membrane stack the process was described. Mole and mass flux, reached product purity and energy consumption were evaluated for all examined cases.

Keywords:

ion substitution, lactic acid, electrodialysis

Citation data from Crossref and Scopus

Published Online

2015-10-07

How to Cite

Doležel, M., Machuča, L. “Production of Lactic Acid by Ion Substitution in 3-Compartment Electrodialysis and Comparing of Stack Arrangements”, Periodica Polytechnica Chemical Engineering, 59(4), pp. 247–252, 2015. https://doi.org/10.3311/PPch.7530

Issue

Section

Articles