| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Electrode Technology for Aluminum Production
|
| Presentation Title |
Development of a Traceable Marker for Pitch Distribution Analysis in Baked Carbon Anodes |
| Author(s) |
Nafiseh Shadvar, Guillaume Gauvin, Simon Laliberté-Riverin, Julien Lauzon-Gauthier, Houshang Alamdari |
| On-Site Speaker (Planned) |
Nafiseh Shadvar |
| Abstract Scope |
Anode sticking is a problematic phenomenon within carbon anode plants during baking, resulting from adhering adjacent anodes together or sticking packing coke to anodes. A possible explanation for it is that pitch may squeeze out of anode. After baking, the pitch is not distinguishable from coke, making pitch tracking challenging. This work aimed to develop a marker to track pitch distribution in anodes. Potential tracers containing additives, including ZnO, FeO, Bi2O3, and WC, were combined with pitch at 1 wt. %. Mixing procedures were optimized to reach a homogeneous distribution of foreign element. Coking value of mixtures was also determined to ensure that additives do not influence the coking process of the pitch. Selected tracers were added to lab-scale anodes, and pitch dispersion in green and baked anodes was assessed using XRF analysis. WC was demonstrated as the most traceable and consistent marker, making it appropriate for anode sticking evaluations. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Powder Materials |