Blast Furnace

Edited by Jamie (ScienceAid Editor), Taylor (ScienceAid Editor), vcdanht, Doug Collins and 4 others

Iron is extracted from the ore haematite (Fe2O3) by reduction. Carbon monoxide is a reducing agent because it is more reactive than iron.


The Furnace

the blast furnace

What's Happening

In the blast furnace, there are several chemical reactions taking place; that eventually result in the desired product (iron) being extracted. The coke (carbon) burns with oxygen to produce carbon dioxide. This reaction is exothermic. The CO2 then reacts with more coke to give carbon monoxide.

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C + O2 ==>> CO2
CO2 + C ==>> 2CO

Carbon monoxide acts as a reducing agent and reacts with the iron ore to give molten iron, which trickles to the bottom of the furnace where it is collected.

Fe2O3 + 3CO ==>> 2Fe + 3CO2

The limestone in the furnace decomposes, forming calcium oxide. This is a fluxing agent and combines with impurities to make slag, which floats on top of the molten iron and can be removed.

CaO + SiO2 ==>> CaSiO3

Questions and Answers

Can you give me easy facts about blast furnace or some interesting facts?

We are doing a presentation on blast furnace and we need your help, Would you mind helping us with a presentation? We don't know anything about blast furnaces.

To prepare for your presentation first make an outline. In your outline you can put:

  • Why blast furnace is used?
  • How iron is formed in the blast furnace?
  • Benefits of using blast furnace.


  • In the introduction part, talk about the role of blast furnace in the formation and collection of iron, and put some pictures about iron and the blast furnace.
  • In the body part, talk about the process of formation of iron. Explain what happens inside the blast furnace step by step and put images illustrating the process.
  • In the conclusion, talk about the importance of this method and how it is very efficient.

What is a blast furnace where are they used and what are they used for?

What are its uses, how does it work, where is it used

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Give me 5 easy points for the process of blast furnance?

I want to know this answer in easy words I searched it also but I did not find it. My problem is that I want to know my answer in easy words. I have tried: Watching blast furnace video and tried to understand the process but I can't. I think it was caused by: That I only understand in easy words,I don't won't difficult words written there I am trying this first time to understand in 5 easy points the process of blast furnance

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Article Info

Categories : Applied

Recent edits by: big boy joshie, Sim, SmartyPants

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