About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
12th International Symposium on High Temperature Metallurgical Processing
|
Presentation Title |
Evaluation of Aluminum White Dross |
Author(s) |
Ilayda Elif Öner, Buse Tuğçe Polat, Selçuk Kan, Kagan Benzesik, Onuralp Yücel |
On-Site Speaker (Planned) |
Kagan Benzesik |
Abstract Scope |
Secondary aluminum production generates harmful by-products like dross. In this study, the aim is producing fused calcium-aluminate from non-metallic residue(NMR) of aluminum white dross(AWD) to use as synthetic flux. Therefore, three sets of experiments were done. In first set, calcination experiments were conducted to obtain high purity alumina. Effects of temperature and duration were investigated at different temperatures for up to 2 hours in a rotary furnace. It was determined that at 1150 °C and 2 hours of duration 5.21wt.%N was eliminated and alumina purity reached 94.67wt.%. In the second set, the aim was to obtain calcium aluminate phase by calcination of dross and limestone while investigating particle size effect of limestone. Consequently, Ca12Al14O33 and Ca3Al10O18 phases were obtained with crushed limestone. At last, obtained calcium aluminates were fused at different temperatures for an hour in graphite crucibles to increase added-value the product. The liquid phase was observed at 1550°C. |
Proceedings Inclusion? |
Planned: |
Keywords |
Pyrometallurgy, Sustainability, Recycling and Secondary Recovery |