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Thermodynamic simulation of the Bayer process
Journal article   Peer reviewed

Thermodynamic simulation of the Bayer process

E. Königsberger
International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde), Vol.99(02), pp.197-202
2008
DOI: https://doi.org/10.3139/146.101624
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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.

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#12 Responsible Consumption & Production

Source: InCites

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6 Times Cited - Web of Science

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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
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