Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
620586 | Chemical Engineering Research and Design | 2014 | 10 Pages |
Abstract
The extraction kinetics of FeIII by di-(2-ethylhexyl) phosphoric acid (D2EHPA) were investigated using a Y-Y shaped microfluidic device. Finite-volume simulations were used to examine the accuracy of a single-step dimeric reaction mechanism in fitting the experimental data. Results demonstrate the validity of the proposed mechanism and show that FeIII extraction occurred at a slow rate (second-order forward rate constant of k1 = (3.0 ± 0.1) Ã 10â6 m4/mol s) under a mixed reaction-diffusion resistance regime. The present study provides insight for the control of FeIII extraction rates in hydrometallurgical processes.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Davide Ciceri, Lachlan R. Mason, Dalton J.E. Harvie, Jilska M. Perera, Geoffrey W. Stevens,