Question

Name the minerals which is used for making iron and steel

Answer 1

Hematite is used to make iron and iron ore is used in the production of steel.

• Iron is produced by heating hematite or magnetite in a blast furnace along with a type of carbon known as "coke" and calcium carbonate (CaCO3), often known as limestone.
• Iron ore, a naturally occurring composite of iron, oxygen, and other minerals, is used to make steel.
• Steelmaking raw materials are mined and then turned into steel via two different processes: the blast furnace/basic oxygen furnace route and the electric arc furnace route.

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Answer 2

Answer:

The mineral involved in the production of iron is Hematite, while iron ore is used to produce steel.

Explanation:

The main ore of iron is Haematite/Magnetite.

However, we already know that haematite is more high-yield, and thus, economical, too.
To produce iron,

• Hematite is put into a blast furnace along with coke and calcium carbonate.

• The limestone decomposes into Calcium oxide, which collects all the impurities (SiO₂ mainly) and forms slag.

• Then, the haematite present in the furnace reacts with the Carbon of cast iron to form pure iron.

   $Fe_2O_3 + 3C \rightarrow 2Fe + 3CO$

• On the other hand, steel is usually made from iron ores. Impurities are removed from the ore, and it is put into a blast furnace.

• After this, crude steel is refined, and then casted. Alloying substances are also added during the process.

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