Mass Transfer Assessment in Extraction of La(III) and Ce(III) Ions Using
Rotating Scheibel Column with Regular Packing
Abstract
In this study, the Scheibel column with the regular packing structure
was investigated in the extraction process of lanthanum and cerium ions.
Mass transfer coefficients identified the column performance in the
transport stage of La(III) and Ce(III) from the aqueous phase to the
organic phase. The variations in operating conditions were investigated
to optimize the extraction of ions. The backflow model (BFM), axial
dispersion model (ADM), and forward mixing model (FMM) were investigated
to evaluate the mass transfer performance. The result showed that the
description of the volumetric overall mass transfer coefficient with
forward mixing model is more significant than two other models. The
medium of average absolute relative error obtained by the FMM model is
~4.45% and ~18.40% (lanthanum
extraction) and ~10.75% and ~14.99%
(cerium extraction) for continuous and dispersed phase, respectively. It
indicated that the applied model has a remarkable accuracy for
description of mass transfer performance