Mathematical modeling of a modified scheibel liquid‐liquid extraction column in the frequency domain

Abstract

The frequency response of a modified Scheibel liquid‐liquid extraction column was experimentally determined from pulse testing data obtained by Pollock. Mathematical modeling was carried out in the frequency domain. Several non‐identical, non equilibrium, perfect mixing stage models were used to describe the dynamic behavior of the column. A signal flowgraph technique was found to be suitable for determining the theoretical frequency response of the non‐identical stage models. All models proposed in this study appeared to simulate satisfactorily the behavior of both the extract and raffinate phases. The theoretical frequency and transient responses agreed very well with experimental data

CFD-PBM Simulation of Sauter Mean Diameter in a Stirred Sieve-Plate Extraction Column

“…The settling section of the column is filled with metal mesh packing. Since then, many efforts have been made to improve the extraction column in order to reduce back-mixing and facilitate the replacement of internal parts. − …”