Abstract
A promising new process for the regeneration of solvents with ionic liquid by molecular distillation has been proposed. The main advantage of this process compared with the classic stripping of acids with alkali solution is that the volatile organic acid is recovered with a yield of about 88 % in the form of free acid, not as its salt. Furthermore, improvement on the yield of the stripping can be assumed. The consumption of chemicals in stripping by molecular distillation is reduced.
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Blahušiak, M., Schlosser, Š., Cvengroš, J., & Marták, J. (2010). New approach to regeneration of the solvent with ionic liquid from membrane based solvent extraction. In 5th Conference on the Membrane Science and Technology Permea 2010, 4–8 September 2010. Tatranské Matliare, Slovakia: Slovak Society of Chemical Engineering.
Cvengroš, J. (1990). Laboratory molecular evaporators. Chemický průmysl, 40/65(3), 135–140. (in Slovak)
Cvengroš, J., Lutišan, J., & Micov, M. (2000). Feed temperature influence on the efficiency of a molecular evaporator. Chemical Engineering Journal, 78, 61–67. DOI: 10.1016/S1385-8947(99)00159-X.
Kuhlmann, E., Haumann, M., Jess, A., Seeberger, A., & Wasserscheid, P. (2009). Ionic liquids in refinery desulfurization: Comparison between biphasic and supported ionic liquid phase suspension processes. ChemSusChem, 2, 969–977. doi: 10.1002/cssc.200900142.
Marták, J., & Schlosser, Š. (2008). Liquid-liquid equilibria of butyric acid for solvents containing a phosphonium ionic liquid. Chemical Papers, 62, 42–50. DOI: 10.2478/s11696-007-0077-5.
Marták, J., & Schlosser, Š. (2007). Extraction of lactic acid by phosphonium ionic liquids. Separation and Purification Technology, 57, 483–494. doi: 10.1016/j.seppur.2006.09.013.
Marták, J., & Schlosser, Š. (2006). Phosphonium ionic liquids as new, reactive extractants of lactic acid. Chemical Papers, 60, 395–398. DOI: 10.2478/s11696-006-0072-2.
Martins, P. F., Ito, V. M., Batistella, C. B., & Maciel, M. R. W. (2006). Free fatty acid separation from vegetable oil deodorizer distillate using molecular distillation process. Separation and Purification Technology, 48, 78–84. doi: 10.1016/j.seppur.2005.07.028.
Matsumoto, M., Hasegawa, W., Kondo, K., Shimamura, T., & Tsuji, M. (2010). Application of supported ionic liquid membranes using a flat sheet and hollow fibers to lactic acid recovery. Desalination and Water Treatment, 14, 37–46. doi: 10.5004/dwt.2010.1009.
Schlosser, Š. (2009). Extractive separations in contactors with one and two immobilized L/L interfaces: Applications and perspectives. In E. Drioli, & L. Giorno (Eds.), Membrane operations. Innovative separations and transformations (pp. 513–542). Weinheim, Germany: Wiley-VCH. DOI: 10.1002/9783527626779.ch23.
Schlosser, Š., Kertész, R., & Marták, J. (2005). Recovery and separation of organic acids by membrane-based solvent extraction and pertraction: An overview with a case study on recovery of MPCA. Separation and Purification Technology, 41, 237–266. doi: 10.1016/j.seppur.2004.07.019.
Schlosser, Š., & Marták, J. (2009). Separation of mixtures by pertraction or membrane based solvent extraction and new extractants. In R. Wódzki (Ed.), Membrane theory and practice (Vol. 3, pp. 123–152). Torun, Poland: Nicolaus Copernicus University. Available at: http://www.chem.uni.torun.pl/FIZ/ChemZM/MTiP/MTiPIII/MTiPIII.html
van den Berg, C., Boon, F., Roelands, M., Bussmann, P., Goetheer, E., Verdoes, D., & van der Wielen, L. (2010). Techno-economic evaluation of solvent impregnated particles in a bioreactor. Separation and Purification Technology, 74, 318–328. doi: 10.1016/j.seppur.2010.06.022.
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Blahušiak, M., Schlosser, Š., Cvengroš, J. et al. New approach to regeneration of an ionic liquid containing solvent by molecular distillation. Chem. Pap. 65, 603–607 (2011). https://doi.org/10.2478/s11696-011-0053-y
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DOI: https://doi.org/10.2478/s11696-011-0053-y