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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Alumina and Bauxite
Presentation Title Effects of the Granular Properties of Bauxite Pisolites on the Solid/Liquid Separation in Liquid Fluidized Beds of Classifiers
Author(s) Thomas Grillot, Guy Simard, Romain Chesnaux, Damien Boudeville, Lou Perrachon
On-Site Speaker (Planned) Thomas Grillot
Abstract Scope Bauxite pisolites found in the Cape York region in Australia are typically near spherical particles. Ore extracted from the Andoom (Weipa) deposit goes through a beneficiation plant to remove the finer fraction, that otherwise lead to handling problems. A key part of the beneficiation flowsheet is a fluidized bed classifier, where fine particles are removed with an overflow system. The objective of this project was to study and understand the solid/liquid separation phenomena taking place in the fluidized bed, especially determining the role of the granular properties in controlling the separation mechanisms. Lab-scale experiments, using a transparent tank and glass beads of controlled grain-size, in place of bauxite, allowed an accurate observation of the fluidized bed behavior. Computer modeling using multi-phase flow, was used to perform the numerical simulations of the experimental setup and establish the relative effects of the parameters that control the separation processes in the fluidized bed.
Proceedings Inclusion? Planned: Light Metals

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A review of comprehensive utilization of high-iron red mud of China
A Review of Research on Alumina Extraction from High-alumina Fly Ash and a New Method for Preparing Alumina by Electrotransformation
Application of Advanced Oxidative Process for Organic Compounds Removal from Bayer Liquor
Bayer Process Towards the Circular Economy – Metal Recovery from Bauxite Residue
Bayer Process Towards the Circular Economy – Soil Conditioners from Bauxite Residue
Brazilian Bauxite Residue Physical-chemical Characterization and Acidic Neutralization Potential
Comprehensive Utilization of Red Mud Through the Recovery of Valuable Metals and Reuse of the Residue
Conversion Behavior of Iron-containing Minerals in the Process of Dissolving High-iron Bauxite by Starch Hydrothermal Method
Effect of Concentrations and Pressures of CO2 on Calcification-Carbonation Treatment of Bauxite residue
Effect of Sodium Alkali Concentration on Calcification-carbonization Process
Effects of the Granular Properties of Bauxite Pisolites on the Solid/Liquid Separation in Liquid Fluidized Beds of Classifiers
Experimental Study on Flow Field Characteristics in Seed Precipitation Tank and its Influence on Physical Properties of Al(OH)3 Products
Extracting Iron Compounds from Calcined Bauxite Residue : Magnetic Separation using a Disc Separator
Flow field Characteristics in Self-stirring Reactor based on PIV Technology
Impacts of Mineralogy on Soluble Phosphorus Concentrations During Low Temperature Processing of Jamaican Bauxites
Inhibition of Kaolinite Dissolution in Bayer Liquor Through Addition of Lithium
Investigation on Heat Resisting Cast Iron Produced Through Carbothermic Reduction of Alumina Residue (Bayer Red Mud)
Ionic Effect of NaCl and KCl on the Flotation of Diaspore and Kaolinite using Sodium Oleate as Collector
Low-quality Aluminum-containing Raw Materials: Experience, Problems and Prospects
Mineralogical Assessment of the Solid Phase Obtained on Leaching of Brazilian Red Mud
Quantifying the effect of seeds on gibbsite crystallization – Mathematical Modelling of particle size distribution
Recovery of Iron from High-iron Bayer Red Mud by Smelting Reduction
The Alumina Technology Roadmap 4.0.

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