The main steps of Extraction of Iron in a Blast Furnace:

*The blast furnace is charged from the top with iron ore, coke (reducing agent) and CaCO3 (slag forming substance).

*Air is blown in at the bottom. The coke burns producing heat and CO.

*The iron oxide is reduced to iron by CO.

*The blast furnace is charged from the top with iron ore, coke (reducing agent) and CaCO3 (slag forming substance).

*Air is blown in at the bottom. The coke burns producing heat and CO.

*The iron oxide is reduced to iron by CO.