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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium 2022 Light Metals Keynote Session
Presentation Title An Overview of the Last 50 Years of the Bayer Process
Author(s) Gyorgy Banvolgyi
On-Site Speaker (Planned) Gyorgy Banvolgyi
Abstract Scope Over the last 50 years the World’ alumina production have increased dramatically (from 21 Mt in 1970 to 133 Mt in 2020). The primary energy consumption of the alumina production have decreased significantly. The bauxite and NaOH consumptions are determined by the quality of the bauxite feedstock, the process technology and equipment has relatively minor impact. Nowadays about 95% of the World’ alumina production is based on the Bayer process, in exceptional cases the combined Bayer-sintering processes. It is deemed therefore to be reasonable that this overview focuses on the Bayer process. The development of the Bayer process will be discussed primarily on the Light Metals proceedings of the last 50 years. It is anticipated that the papers will be classified as it follows: * Development of the Bayer process technology (by principal unit operations) * Control of contaminants (beneficiation, organics included) * Reduction of the energy consumption * Overall process modelling and process control * Chemistry of the Bayer process * Equipment and development of the capacities of the production lines * Analytical procedures, quality control * By-products (such as bauxite residue (red mud)) and other topics * Development of the alumina production in China As closing remarks the tendencies from the assessment of the development of the past fifty years and a likely roadmap for the foreseeable future will be outlined.
Proceedings Inclusion? Planned: None Selected


50 Years of Aluminum Cast House Technology Development: Lessons from 5 Case Studies
50 Years of Fundamental Research, Continuous Development, and Technology Innovation Within the Aluminum Smelting Industry
50 Years of Research and Developments on Cathode Designs in Aluminium Reduction
An Overview of the Last 50 Years of the Bayer Process
Challenges for the Carbon Transition – Revisiting 50 Years of Anode Technology Development
From Grain Refining to Casting Defects: Simplicity in Complexity
Review of Different Types of Models Related to Aluminum Reduction Cell Design and Operation
The Evolution of Smelting Aluminas

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