Journal article
Thermodynamic simulation of the Bayer process
International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde), Vol.99(02), pp.197-202
2008
Abstract
The Gibbs energy minimiser incorporated in the thermodynamic subroutine library ChemApp and a thermodynamically consistent, ten-component Bayer liquor model were applied to a simulation of the Bayer process employed worldwide for the refining of alumina from bauxite ores. As well as the liquor cycle from digestion, clarification, precipitation, evaporation and back to digestion (including flash cooling and heating steps), calcination to alumina in a circulating fluid bed furnace was simulated. The present study not only covers temperature and concentration ranges from boehmite digestion to gibbsite precipitation, it also permits exploration of boehmite precipitation as a potential energy saving modification of the process. Furthermore, the simulation is able to predict the accumulation and precipitation of undesirable impurities in various stages of the liquor circuit. It also identifies possible reductions in the overall energy consumption of the Bayer process.
Details
- Title
- Thermodynamic simulation of the Bayer process
- Authors/Creators
- E. Königsberger (Author/Creator) - Murdoch University
- Publication Details
- International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde), Vol.99(02), pp.197-202
- Publisher
- Carl Hanser Verlag
- Identifiers
- 991005543933907891
- Copyright
- © Carl Hanser Verlag
- Murdoch Affiliation
- School of Chemical and Mathematical Science
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 7 Engineering & Materials Science
- 7.229 Mineral & Metal Processing
- 7.229.2385 Red Mud Valorization
- Web Of Science research areas
- Metallurgy & Metallurgical Engineering
- ESI research areas
- Materials Science