| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Primary Aluminum Industry - Energy and Emission Reductions: An LMD Symposium in Honor of Halvor Kvande
|
| Presentation Title |
A Historical Review of Aluminum Reduction Cell Start-up and Early Operation |
| Author(s) |
Michel R. Reverdy, Vinko Potocnik |
| On-Site Speaker (Planned) |
Michel R. Reverdy |
| Abstract Scope |
Start-up and early operation of aluminum reduction cells are very important for cell performance, life expectancy and environment. Several methods of cell start-up have been used over time, some early methods with no preheat, but using preheat has been more successful and remains the predominant method today. Ideally the cell should be preheated slowly to uniform operating temperature on the top of cathode blocks, but in practice this is rarely achieved and is different between companies. Bath-up and metal addition also follow different approaches from basic, neutral or acidic bath and metal addition 12-24 hours or even more after bath-up. Recently dry start-up has also been used. Early operation and the time to normal operation in general depends on cathode block grade and is from 2-3 weeks to three months. This paper will present different approaches to cell start-up and early operation through time and among companies. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, |