Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
688112 | Chemical Engineering and Processing: Process Intensification | 2008 | 8 Pages |
Abstract
This work deals with the cementation of copper ions onto iron shots, within a fixed bed or fluidized bed, associated with an electromagnetic field. The influence of several parameters is studied: flowrate (5-45 L minâ1 corresponding to a 1.4 Ã 10â2 to 1.3 Ã 10â1 m sâ1 superficial velocity), temperature (20-40 °C), initial concentration of Cu(II) (50-10,000 ppm), pH (1.5-4.5), bed height (20-45 cm). Moreover, the influence of a movable and alternated electromagnetic field is also investigated. Cementation results and the hydrodynamic characterization of the reactor have been coupled through a process modeling in order to determine apparent mass transfer coefficients. These coefficients (ranging from 2.2 Ã 10â5 to 2.3 Ã 10â4 m sâ1) are used as a comparison criterion to quantify the influence of each operating parameters. This work points out an enhancement of copper recovery when the electromagnetic field leads to a magnetically stabilized fluidized bed (MSFB).
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
F. Gros, S. Baup, M. Aurousseau,