Journal of Siberian Federal University. Engineering & Technologies / Impact of Magnetohydrodynamic and Bubbles Driving Forces on the Alumina Concentration in the Bath of an Hall-Heroult Cell

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Issue
Journal of Siberian Federal University. Engineering & Technologies. 2013 6 (3)
Authors
Kaenel, Rene von; Antille, Jacques; Romerio, Michel V.; Besson, Olivier; Kaenel, Rene von; Antille, Jacques; Romerio, Michel V.; Besson, Olivier
Contact information
Kaenel, Rene von: KAN-NAK Ltd. Route de Sion, 35 B, 3960 Sierre, Switzerland;; Antille, Jacques: KAN-NAK Ltd. Route de Sion, 35 B, 3960 Sierre, Switzerland;; Romerio, Michel V.: University of Neuchâtel, Emile Argand 11, 2000 Neuchatel, Switzerland;; Besson, Olivier: University of Neuchâtel, Emile Argand 11, 2000 Neuchatel, Switzerland;; Kaenel, Rene von: KAN-NAK Ltd. Route de Sion, 35 B, 3960 Sierre, Switzerland;; Antille, Jacques: KAN-NAK Ltd. Route de Sion, 35 B, 3960 Sierre, Switzerland;; Romerio, Michel V.: University of Neuchâtel, Emile Argand 11, 2000 Neuchatel, Switzerland;; Besson, Olivier: University of Neuchâtel, Emile Argand 11, 2000 Neuchatel, Switzerland;
Keywords
Alumina concentration modelling; gaz bubble interaction; MHD interaction
Abstract

The alumina concentration in the bath plays a fundamental role on cell operation. Local depletion may lead to an anode effect when using carbon anodes. A mathematical model describing the alumina convection-diffusion process in the bath coupled to the cell magneto-hydrodynamic (MHD) in the presence of small bubbles is presented. Small bubbles may be assumed when slotted anodes are used. The relative importance of the velocity felds generated by the magnetic effects and/or the small bubbles on the alumina concentration in the bath is discussed.

Pages
257-267
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/9804

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