| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
11th International Symposium on High Temperature Metallurgical Processing
|
| Presentation Title |
M-32: Reduction Kinetics of Oxidized Magnetite Briquettes in Co-atmosphere |
| Author(s) |
Bayaraa Saraatanbazar, Guanghui Li |
| On-Site Speaker (Planned) |
Bayaraa Saraatanbazar |
| Abstract Scope |
This study subjected magnetite concentrate reduction, brown coal obtained from Mongolia to making organic binder. Pressed iron concentrate with MHA binder subjected to oxidation and reduction process in the electrical furnace. The optimum conditions of experiments as follows: Parameters of briquetting process were carried out according to the no-binder briquetting test 0.75 t·cm-2 pressure, 5 seconds pressing time, 8 percent of moisture content, oxidation at 950°C under air flow for 10 min, reduction at 1100°C under CO atmosphere. The result provide MHA binder extracted from ‘Baganuur’ lignite was more affected to reduction degree and selected in this study. Total iron content in reduced iron is attained to 98.33% with 1% of MHA extracted from ‘Baganuur’ lignite. Reduction degree expressed by loss of oxygen. The experiment result shows porosity of oxidized briquettes is direct relation with reduction degree. Activation energy of reduction process with MHA is 81.74 kJ/mol. |
| Proceedings Inclusion? |
Planned: |