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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Alumina & Bauxite
Presentation Title Thermodynamics Analysis on Process of Pelletizing Chlorination of Fly Ash
Author(s) Long Wang, Zhang Ting'an, Guozhi Lyu , Jingzhong Zhang , Zhihe Dou , Weiguang Zhang , Xijuan Pan , Yanxiu Wang
On-Site Speaker (Planned) Long Wang
Abstract Scope Fly ash, generated during the combustion of coal for energy production, is an industrial by-product which is recognized as an environmental pollutant. In this paper, thermodynamic calculations and experiments in a tubular furnace reactor were conducted to investigate the impact of process of pelletizing chlorination of fly ash. The thermodynamic calculations indicated that pelletizing chlorination reaction converts Al2O3 and SiO2 which can not directly react with chlorine gas originally to chloride completely, and this demonstrates the thermodynamics feasibility of pelletizing chlorination process. Experiments results show that the alumina chlorination efficiency was up to 65% when the pellet diameter was 8mm at 1050℃ for 30 min. The effect of alumina chlorination efficiency in pelletizing chlorination process mainly depended on the temperature, chlorination time and pellet diameter. These findings provide useful information for understanding the pelletizing chlorination process, facilitating the development of pelletizing chlorination metallurgy in efficient clean utilization of fly ash.
Proceedings Inclusion? Planned: Light Metals

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Alumina, Iron and Titanium Extracting from Bauxite Residue with Low Lime Sinter Method
Analyzing the Bauxite Residue Amendment through the Addition of Ca and Mg Hydroxides Followed by Carbonation
Comprehensive Utilization of Red Mud: Current Research Status and a Possible Way Forward for Non-hazardous Treatment
Developing New Process for Selective Extraction of Rare Earth Elements from Bauxite Residue Based on Functionalized Ionic Liquids.
Development and Usage of Detailed Models of Technology at RUSAL Alumina Refineries
Digital Transformation in Alumina Refining
Effect of Organic Impurity on Seed Precipitation in Sodium Aluminate Solution
Effect of Sintering Conditions on the Stability of β-2CaO·SiO2 in High Sodium Carbonate Solution
Effects of Reductive Roasting with Sodium Salts on Leaching Behavior of Non-ferrous Elements in Bauxite Ore Residue
Experimental Investigation on Desiliconization of Low-grade Bauxite by Flotation Process
Expertimental Investigation on Reduction of Cast Iron from Bayer Red Mud and Laterite Nickel
Features of Pseudoboehmite from Alumina Production
Fitness-for-service Assessment and Re-rating of Flawed Alumina Feeding Vessels
Flotation of Low-grade Bauxite Using Modified Humics as Depressant
Flotation Separation of Pyrite from Refractory High-sulfur Bauxite
Hide details for [<a href="/PM/PM.nsf/ApprovedAbstracts/6D8E7B24CEA9C1568525815D003F6EE8?OpenDocument">How Digitalization Can FHow Digitalization Can Further Improve Plant Performance and Product Quality - Outotec Pretium Advisory Tool for Alumina Calcination
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Industrial Experience of Sinter Hydro-chemical Processing at Bogoslovsk Alumina Refinery
Miniplant Tests of HCl Technology of Alumina Production
Research on Alumina Preparation from Aluminium Chloride Solution by Electrolysis Process
Research on Impurity Removal of Low Grade Bauxite
Research on the Adsorption of Humic Acid on Pyrite Surface
Research on the Desulfurization of High Sulfur Bauxite
Research on the Interaction between 1-butyl-2-mercaptobenzimidazole and Pyrite
Roasting Pretreatment- low Temperature Digestion Method for Comprehensive Utilization of High-sulfur Bauxite
Specific Features of Scandium Behavior during Sodium Bicarbonate Leaching of Red Mud
Study on the Structure and Generation Mechanism of Intermediate (6AlO-OH) in Decomposition Process of Sodium Aluminate Solutions
The Impact of Backwater Iron Ions on Bauxite Flotation
The Influence of Lime Reactivity on the Alumina Production
The Properties of Superfine ATH Precipitated by Carbonation Method
Thermodynamics Analysis on Process of Pelletizing Chlorination of Fly Ash

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