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New approach to regeneration of an ionic liquid containing solvent by molecular distillation

Marek Blahušiak, Štefan Schlosser, Ján Cvengroš, and Ján Marták

Institute of Chemical and Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia

 

E-mail: marek.blahusiak@stuba.sk

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.

Keywords: extraction – regeneration – molecular distillation – ionic liquids – butyric acid

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-011-0053-y

 

Chemical Papers 65 (5) 603–607 (2011)

Tuesday, June 28, 2022

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