[en] Extraction is a downstream-process option in bio-based processes. Since the knowledge of phase-separation behavior is essential for designing efficient separation processes, this study investigates the settling and coalescence behavior of bio-based extraction systems using a standard lab-scale settling cell. The influence of
different buffer media as well as of E. coli cells on coalescence was determined for the reactive extraction of hexane-1.6-diamine with isostearic acid and D2EHPA using kerosene and oleyl alcohol as diluents. As a result, an increasing pH value of the buffer significantly increases settling time. The presence of E. coli cells hinders the phase separation of the investigated systems, in particular with dispersed organic phases.
Research center :
PEPs, Products, Environment, and Processes, Department of Chemical Engineering
Disciplines :
Chemical engineering
Author, co-author :
Bednarz, Andreas
Scherübel, Peter
Spieß, Antje C.
Pfennig, Andreas ; Université de Liège > Department of Chemical Engineering > PEPs - Products, Environment, and Processes
Language :
English
Title :
Optimization of settling behavior for an efficient solvent-extraction process for bio-based components
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