Extraction of Lactic Acid in Mixed Solvent Electrolyte System Containing Water, 1-Butanol and Ammonium Sulfate

Kanungnit Chawong; Chanita Rayabsri; Panarat Rattanaphanee

doi:10.1515/ijcre-2014-0132

Article

Extraction of Lactic Acid in Mixed Solvent Electrolyte System Containing Water, 1-Butanol and Ammonium Sulfate

Kanungnit Chawong , Chanita Rayabsri and Panarat Rattanaphanee

Published/Copyright: May 22, 2015

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From the journal International Journal of Chemical Reactor Engineering Volume 13 Issue 2

Abstract

Extraction of lactic acid from its aqueous solution was carried out at 30.0°C in a mixed solvent electrolyte system containing water, 1-butanol and ammonium sulfate ((NH₄)₂SO₄). The salt appeared to reduce mutual solubility between water and 1-butanol leading to an enlarged two-phase region of the mixture. The effect was more pronounced at high salt concentration. In view of extraction, ternary mixture containing water, 1-butanol and lactic acid, (NH₄)₂SO₄ effectively salted-out 1-butanol and lactic acid leading to a reduced concentration of these two components in the aqueous phase. Distribution coefficient and degree of lactic acid extraction were significantly improved with increasing concentration of the salt. Additionally, (NH₄)₂SO₄ helped lessen the transfer of one solvent into the other, which is the problem normally encountered in extraction when partially miscible solvents are employed. It also advantageously allowed the extraction to be carried out at a high solvent-to-aqueous phase volume ratio, where large recovery of the acid was achieved. Extraction of lactic acid in this mixed solvent electrolyte system could be further improved by operating it in a stage-wise mode rather than a batch one.

Keywords: lactic acid; extraction; liquid–liquid equilibrium; 1-butanol; ammonium sulfate

Acknowledgments

This work is financially supported by the National Innovation Agency, Ministry of Science and Technology, Thailand. All the research work was performed using the research facilities and infrastructures of Suranaree University of Technology.

Notation

C: molar concentration of lactic acid
D: distribution coefficient
%E: degree of extraction
V: phase volume
W: weight fraction
%W: percent by weight
Subscripts
0: starting solution
1: water
2: 1-butanol
3: (NH₄)₂SO₄
LA: lactic acid
aq: aqueous phase
org: organic phase

References

1. Chawong, K., Rattanaphanee, P.,2011. n-butanol as an extractant for lactic acid recovery. World Academy of Science, Engineering and Technology80, 239–242.Search in Google Scholar

2. Chawong, K.,Rattanaphanee, P., 2012. Effect of chloride salt on extraction of lactic acid with n-butanol. Engineering Transaction15, 66–71.Search in Google Scholar

3. Domingues, L., Cussolin, P.A., Lopes da Silva Jr, J., Hadlich de Oliveira, L., AznarM., 2013. Liquid-liquid equilibrium data for ternary systems of water+lactic acid+C4-C7 alcohols at 298.2 K and atmospheric pressure. Fluid Phase Equilibria354, 12–18.10.1016/j.fluid.2013.06.007Search in Google Scholar

4. Ghalami-Choobar, B., Ghanadzadeh, A., Kousarimehr, S., 2011. Salt effect on the liquid-liquid equilibrium of (water+propionic acid+cyclohexanol) system at T=(298.2, 303.2, 308.2) K. Chinese Journal of Chemical Engineering19, 565–569.10.1016/S1004-9541(11)60022-0Search in Google Scholar

5. Marták, J., Schlosser, S., 2007. Extraction of lactic acid by phosphonium ionic liquids. Separation and Purification Technology57, 483–494.10.1016/j.seppur.2006.09.013Search in Google Scholar

6. Marták, J., Schlosser, S., Silvia Vlčková, S., 2008. Pertraction of lactic acid through supported liquid membranes containing phosphonium ionic liquid. Journal of Membrane Science318, 298–310.10.1016/j.memsci.2008.02.064Search in Google Scholar

7. Oliveira, F.S., Araújo, F.S., Ferreira, J.M.M., Rebelo, R., Marrucho, L.P.N., IsabelM., 2012. Extraction of l-lactic, l-malic, and succinic acids using phosphonium-based ionic liquids. Separation and Purification Technology85, 137–146.10.1016/j.seppur.2011.10.002Search in Google Scholar

8. Pirahmadi, F., Deghani, M.R., Behzadi, B., Seyedi, S.M., Rabiee, H., 2010. Experimental and theoretical study on liquid-liquid equilibrium of 1-butanol+water+NaNO₃ at 25 and 35°C. Fluid Phase Equilibria299, 122–126.10.1016/j.fluid.2010.09.013Search in Google Scholar

9. Pirahmadi, F., Deghani, M.R., Behzadi, B., 2012. Experimental and theoretical study on liquid-liquid equilibrium of 1-butanol+water+NH₄Cl at 298.15, 308.15 and 318.15 K. Fluid Phase Equilibria325, 1–5.10.1016/j.fluid.2012.03.026Search in Google Scholar

10. Sahin, S., Kirbaslar, I., Bilgin, M., 2009. (Liquid+liquid) equilibria of (water+lactic acid+alcohol) ternary system. Journal of Chemical Thermodynamics41, 97–102.10.1016/j.jct.2008.07.014Search in Google Scholar

11. Stepan, D.J., Olson, E.S., Shockey, R.E., Stevens, B.G., Gallagher, J.R., 2001. Recovery of lactic acid from American crystal sugar company waste water. Final Topical Report prepared for AAD Document Control, National Energy Technology Laboratory, USA.10.2172/788118Search in Google Scholar

12. Tan, T.C., Aravinth, S., 1999. Liquid-liquid equilibria of water/acetic acid/1-butanol system–effect of sodium (potassium) chloride and correlations. Fluid Phase Equilibria. 163, 243–257.10.1016/S0378-3812(99)00231-9Search in Google Scholar

13. Wasewar, K.L., Heesink, A.B.M., Versteeg, G.F., Pangarkar, V.G., 2002. Reactive extraction of lactic acid using alamine 336 in MIBK: equilibria and kinetics. Journal of Biotechnology97, 59–68.10.1016/S0168-1656(02)00057-3Search in Google Scholar

Published Online: 2015-5-22

Published in Print: 2015-6-1

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Articles in the same Issue

https://doi.org/10.1515/ijcre-2014-0132

Keywords for this article

lactic acid; extraction; liquid–liquid equilibrium; 1-butanol; ammonium sulfate