Application of supercritical carbon dioxide in extraction processes of carboxylic acids

Małgorzata Djas , Marek Henczka


The results of experimental investigations of the course of physical and reactive extraction of carboxylic acids from aqueous solutions using supercritical carbon dioxide and 1-octanol have been presented. In the paper, the separation of four carboxylic acids of different molecular structures, i.e. acetic, propionic, succinic and citric acid was taken into account. The effect of the application of trin- octylamine as a complexing reactant in the reactive extraction process of carboxylic acids was identified. Moreover, the final yields of the considered acids physical and reactive extraction processes by using organic solvent (1-octanol) and supercritical carbon dioxide were compared and interpreted. The extraction processes using supercritical CO2 was conducted in both batch and semicontinuous mode. The effect of the pressure and temperature on the efficiency of supercritical extraction was identified.
Author Małgorzata Djas (FCPE / DCRED)
Małgorzata Djas,,
- Department of Chemical Reactor Engineering and Dynamics
, Marek Henczka (FCPE / DCRED)
Marek Henczka,,
- Department of Chemical Reactor Engineering and Dynamics
Publication size in sheets0.5
Book The 22nd Polish Conference of Chemical and Process Engineering: Proceedings, 2016, Łódź, Faculty of Process and Environmental Engineering, ISBN 978-83-61997-75-7, 1584 p.
Proceedings OKIChiP 2016.pdf / No licence information (file archived - login or check accessibility on faculty)
Keywords in Englishsupercritical carbon dioxide, carboxylic acid, tri-n-octylamine, reactive extraction
Languageen angielski
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