Reactive extraction of succinic acid using supercritical carbon dioxide |
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| Authors: | Marek Henczka Małgorzata Djas |
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| Affiliation: | 1. Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland;2. Department of Chemical Technologies, Institute of Electronic Materials Technology, Warsaw, Poland |
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| Abstract: | Reactive extraction using supercritical carbon dioxide (scCO2) and tri-n-octylamine (TOA) was evaluated as a separation method of succinic acid from an aqueous solution. The reactive extraction of succinic acid was performed at varying initial acid concentrations in aqueous solution (0.07–0.45 mol?dm?3), temperature (35–65°C) and pressure (8–16 MPa). The succinic acid separation was conducted in both batch mode and semi-continuous mode. The highest reactive extraction efficiency of approx. 62% was obtained for the process conducted in semi-continuous mode at 35°C and 16 MPa for the initial acid concentrations in aqueous phase of 0.39 mol?dm?3. |
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| Keywords: | Reactive extraction Succinic acid Supercritical carbon dioxide Tri-n-octylamine |
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