Evaluation of the Suitability of Alternative Binder to Replace OPC for Iron Ore Slime Briquetting
- Nath, S K
- Rajshekhar, Y
- Alex, T C
- Venugopalan, T
- Kumar, Sanjay
DOIAbstract
Iron ore slime is a powdery material of very fine size (<50 µm) generated during washing of iron ores. Despite of high iron oxide content, it can’t be used in the iron making process because of its higher alumina and silica content. In recent times, we have developed the process of making briquettes from iron ore slime as a coolant to replace iron ore lump in basic oxygen furnaces (BOF). Slime is hydraulically compacted using 10 wt% ordinary Portland cement (OPC) for binding to briquette shape and around 8 wt% of total charging material is fed to the BOF along with hot metal. The main objective of the present work is to find out an environment friendly, economically viable alternative of OPC binder for briquetting. Binder selection is done ...
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