Premium
Liquid—liquid extraction column (rotating disc contactor)—model parameters from drop size distribution and solute concentration measurements
Author(s) -
Korchinsky Walter J.,
AlHusseini Raed
Publication year - 1986
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280360903
Subject(s) - contactor , drop (telecommunication) , mass transfer , mechanics , continuous phase modulation , dispersion (optics) , tracer , chemistry , thermodynamics , materials science , physics , optics , telecommunications , power (physics) , computer science , nuclear physics
The practical application of an extraction column model which takes into account the influence of drop‐size distribution (i.e. the ‘forward mixing’ model) is brought forward by the generation, from experimental data, of values of the mass transfer and axial dispersion coefficients required by the model. Values of these coefficients were generated from drop‐size distribution and solute concentration profile measurements in a 22 cm diam. rotating disc contactor. The use of the Handlos‐Baron drop mass transfer model is justified. The resulting continuous phase transfer coefficients were found to be dependent only on disc speed. Continuous phase axial dispersion coefficients were much higher than tracer‐correlation predicted values at higher flows, and larger drop sizes. An explanation for this is presented.