Iron Ore 01

GOVT SEC SCHOOL, DHINGI (PATIALA)

Extraction of Iron Ore Prepared By: Gurpreet Sukhvir Amandeep Class (X)

Guided By: Mrs. Manpreet Kaur (Comp. Faculty)

What is Iron?

It is second most commonly found metal.  The symbol of iron is Fe.  It is related with Transition Element.  The Atomic number of Iron is 26 in the Periodic Table.  The Electronic configuration of Iron is 2, 8,8,6,2. 

Minerals in Iron 1. 2. 3. 4. 5.

Hematite Magnetite Limonite Siderite Iron Pyrites

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Fe2 O3 Fe3 O4 Fe2 O3 3H2O Fe CO3 FeS2

Extraction of Iron (Fe2 O3)  The Ore is concentrated by Hydraulic Washing with steam of water to remove the unwanted particles Like Clay, Sand etc.  After that Following Gases are released :Fe2 O3. 3H2O 2FeCO3 4Fe + 3O2

Fe2O3

+

3H2O

2FeO +

2CO2

2Fe2O3

The Blast Furnace Iron ore, coke ,limestone

Hot waste gases

HOT WASTE GASES

400 c Steel lined with heat resistant brick

1800 c Hot air blast Tap hole for iron

Hot air blast Molten slag

Molten iron

Tap hole for iron

Smelting

Smelting 1.

A mixture of Iron Ore, Coke and Lime Stone is fed from the top of the furnace. C + O2 CO2 (Carbon) (oxygen) (Carbon dioxide)

2. Coke is converted into Carbon monoxide. CO2 + C 2CO (Carbon dioxide) (Carbon) (Carbon monoxide)

Slag

Slag Lime stone decomposes to give Calcium oxide and Carbon dioxide. CaCO3 CaO + CO2 (Lime Stone) (Calcium oxide) (Carbon dioxide)  Calcium oxide reacts with Silicon dioxide to form Molten Calcium Silicate Known as Slag. CaO + SiO2 CaSiO3 (Calcium oxide) (Silica) (Calcium Silicate)

Pig Iron

Pig Iron  The iron obtained from the Blast Furnace is Called Pig Iron.  The temperature of upper part of Blast Furnace is 875 K.

The following reaction is occurred:Fe2 O3 + 3CO2 (Ferric oxide) (Carbon monoxide) dioxide)

Fe + 3CO2 (Iron) (Carbon

References  Text Book ( X class) (P.S.E.B)  Internet