About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2026 - In-Situ Characterization Techniques
|
| Presentation Title |
Coal-Based Colloidal Composite Binder: In-Situ Characterization of a New Efficient Binder for Iron Ore Agglomeration |
| Author(s) |
Jin Zhang, Xi Zhang, Yi Yao, Guanghui Li, Tao Jiang |
| On-Site Speaker (Planned) |
Jin Zhang |
| Abstract Scope |
Coal-based Colloidal Composite Binder (3Co-Binder), developed by Central South University, is a novel and efficient binder for iron ore agglomeration that has been successfully applied in industrial practice in China. Derived from humic substances extracted from low-rank coal, it requires a low addition rate (0.1–0.3% on a dry basis), enhances pellet strength, reduces production costs, and increases pellet iron grade by approximately 0.7–1.0% compared to conventional bentonite. The binder’s strong interfacial adhesion to iron ore concentrate was quantitatively characterized at the microscopic scale using in-situ analytical techniques, confirming its superior bonding performance. Its thermal stability during the oxidation roasting process was also evaluated in-situ, revealing that its decomposition behavior closely matches the oxidation kinetics of iron ore. This thermal compatibility promotes coordinated phase evolution during induration and ensures stable performance across a wide temperature range, thereby demonstrating the binder’s effectiveness and reliability in industrial pellet production. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Thin Films and Interfaces, Characterization |