Effect of raw coke and limestone in the blast furnace?
Effect: 1 coke reaction first and oxygen to produce carbon dioxide, carbon monoxide and carbon dioxide generated by the reaction of 2 generation, and carbon monoxide as reducing agent and iron ore (or ferrous or ferric oxide Fe3O4) reaction of iron and carbon dioxide.
The role of Limestone: because there are impurities in iron ore, that is, silica dioxide, limestone is the main component of calcium carbonate, calcium carbonate and silica reaction to produce calcium silicate and carbon dioxide, is the so-called slag
