Title: Towards model based re-design of the copper electro-winning process
Authors : Brunner, Daniel
Boiger, Gernot Kurt
Published in : International Journal of Multiphysics
Proceedings: Multiphysics 2016
Conference details: International Conference of Multiphysics, Zurich, 8 - 9 December 2016
Publisher / Ed. Institution : International Society of Multiphysics
Issue Date: 2016
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (abstract)
Language : English
Subjects : Model based development; Electro winning; Copper; Simulation; OpenFoam®; Fluiddynamics
Subject (DDC) : 003: Systems
660: Chemical engineering
Abstract: High purity copper, suitable for electrical applications, can only be obtained by electrowinning. One aspect of this process is its self-induced natural convection through density variations of the electrolyte at both anode and cathode. The eventual goal is to highlight convective effects as main copper-transport mechanisms between the copper-winning electrodes. In order to do this, first the full dynamic complexity of the process needs to be understood. Thus an OpenFoam® based 3D model of the process has been created. This finite-volume multiphysics approach, solves the laminar momentum and copper-ion species conservation equations, as well as local copper-ion conversion kinetics. It uses a Boussinesq approximation to simulate the species-momentum coupling, namely natural draft forces induced by variations of the spatial copper concentration within the fluid. The model shows good agreement with benchmark-cases of real-life electrochemical cells, found in literature. Now the software can be applied to investigate how different forced convection conditions affect the speed of the entire copper-raffination process.
Departement: School of Engineering
Organisational Unit: Institute of Computational Physics (ICP)
Publication type: Conference other
ISSN: 2409-7527
2409-1669
URI: http://www.multiphysics.org/MULTIPHYSICS%202016%20-%20Abstracts.pdf
https://digitalcollection.zhaw.ch/handle/11475/16361
Appears in Collections:Publikationen School of Engineering

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