Optimum Blast Furnace Slag Composition for Hot Metal Production, Slag Granulation and Cement Use
(Room 207A)
08 May 17
11:00 AM
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11:30 AM
Tracks:
Blast Furnace Operating Improvements
An essential part of blast furnace ironmaking, blast furnace slag is increasingly sold as a valuable byproduct to cement producers. When selecting a slag composition, competing requirements must be considered to meet blast furnace and cement producer needs. To better understand the optimum slag composition, property data will be prioritized, including liquidus temperature, viscosity, basicity, sulfur and alkali removal capacity, as well as the impact of titanium additions. Wet granulation, pelletizing and dry slag atomization technologies will be compared to better understand the flexibility that each process has to treat a range of blast furnace compositions and produce byproduct slag suitable for sale. Considering these various requirements, blast furnace operators can select a slag composition that maximizes profit and value-in-use to the steel plant operation.