Fast batch to continuous solid-liquid extraction from plants in continuous industrial extractor

Rachel Poirot (1) , Laurent Prat (1) , Christophe Gourdon (1) , Catherine Diard (2) , Jean Marie Autret (2)

1 LGC - Laboratoire de Génie Chimique
2 PIERRE FABRE

In this work, a study about solute continuous extraction from vegetable matrix is undertaken. An industrial apparatus is used and the problems are to identify information to be acquired in order to process implementation. To this end, a batch study was carried out to obtain the extraction kinetics, as well as a study of the matter behaviour under pressure and a study of raw plant transport. Finally, to couple these elements makes it possible to represent the extraction yields according to time in the apparatus. A methodology for the change from batch to continuous extractor based on laboratory tests is proposed.

Mots clés: Solid-liquid extraction; Leaching; Active principle; Continuous industrial extractor; Batch to continuous; Fast process development

Domaines: Génie chimique

Rachel Poirot, Laurent Prat, Christophe Gourdon, Catherine Diard, Jean Marie Autret. Fast batch to continuous solid-liquid extraction from plants in continuous industrial extractor. Chemical Engineering and Technology, 2007, 3 (1), pp.46-51. ⟨10.1002/ceat.200600304⟩. ⟨hal-03481282⟩