Question

explain the extraction of iron by blast furnace

Answer 1

Extraction of iron from its ore is the third and the penultimate process in the Metallurgy. The extraction of metals and its isolation occurs over a few major steps:

Concentration of Ore

Extraction of metal from concentrated Ore

Purification of the metal

How is iron extracted from its ore? It’s a long process which begins with Concentration through calcination roasting. Concentration removes the water and other volatile impurities such as sulfur and carbonates. This concentrated ore is mixed with limestone (CaCO3) and Coke and fed into the blast furnace from the top. It is in the blast furnace that extraction of iron occurs. The extraction of iron from its ore is a long and subdued process, that helps in separating the useful components from the waste materials such as slag.

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Answer 2

Blast furnace Working animation - Extraction of ironmetallurgy of iron. ...Extraction iron from its Oxide ores - Blast furnace: Oxide ores of iron, after concentration through calcination/roasting are mixed with limestone and coke and fed into a Blast furnace from its top. Here, the oxide is reduced to the metal.



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