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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 has 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: *An introduction on what bauxite, Bayer process and bauxite residue are; *Chemistry of the Bayer process; *Development of the Bayer process technology (by principal unit operations); *Reduction of the energy consumption; *Process control; *Equipment and capacity development of the production lines; *Quality control; *Bauxite residue (red mud) as principal by-product. 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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