| About this Abstract |
| Meeting |
2010 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alumina and Bauxite
|
| Presentation Title |
Study and Application of an Improved Sintering Process with Pre-drying of Raw Material Slurries |
| Author(s) |
Hengqin Zhao, Baozhong Lu, hualong ma |
| On-Site Speaker (Planned) |
Hengqin Zhao |
| Abstract Scope |
An improved sintering process to produce alumina was studied. The raw material slurries with proper mass ratio were dried with waste gas of kiln. The temperature of waste gas of kiln was decreased to under 110°C from above 500°C during drying of the slurries. The content of moisture of the slurries was reduced to 5% from 40% through drying process with the waste gas of the kiln. The dried slurries called as dry raw slurries were fed to the kiln and were sintered to the sinter .The aluminate sodium of the obtained sinter was very easy to be leached and leaching rate of alumina and oxide sodium in the obtained sinter reached to up 90% and 95% respectively. According to industrial application after adoption of the improved sintering process, consumption of coal in the sintering can be decreased by 18% than before improvement. |
| Proceedings Inclusion? |
Definite: A combination print-CD volume |