Ironmaking 101 From Ore to Iron with Blast Furnaces
In the upper region of the blast furnace where temperature range from 600 to 700 C. the iron ore or iron oxide is reacts with the gaseous CO reductant to produce iron: Fe 2 O 3 (s) + 3CO (g) → 2Fe + 3CO 2 (g) Lower in the blast furnace where higher temperatures occur, the iron ore may react directly with the coke or carbon: