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Transport processes at single droplets in micellar liquid/liquid systems
Author(s) -
Paul Niklas,
Kraume Matthias,
Schön Sebastian,
von Klitzing Regine
Publication year - 2015
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.14699
Subject(s) - liquid liquid , pulmonary surfactant , surface tension , mass transfer , drop (telecommunication) , transport phenomena , chemistry , liquid–liquid extraction , work (physics) , colloid , chemical engineering , extraction (chemistry) , chemical physics , chromatography , thermodynamics , organic chemistry , mechanical engineering , engineering , physics , biochemistry
In many industrial applications, the knowledge of the occurring transport processes in liquid/liquid systems is of great interest to design a multiphase reactor or an extraction column, for instance. All transport processes in liquid/liquid systems are governed by the interface. In some processes surfactants are needed. Surfactants change many interfacial properties which affect the transport processes. In this work, the influence of high surfactant concentrations (micellar systems) on transport processes is regarded. To understand, the occurring reduction of the drop rise velocity and of mass transfer rates experimental investigations of the occurring interfacial phenomena are carried out. Therefore, interfacial tension measurements as well as colloidal probe atomic force measurements of liquid/liquid systems were conducted. It was proved that for high nonionic surfactant concentrations a change of the phase behavior must be taken into consideration to describe transport processes in micellar liquid/liquid systems. © 2014 American Institute of Chemical Engineers AIChE J , 61: 1092–1104, 2015