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The chief ores of iron are haemalite (Fe...

The chief ores of iron are haemalite `(Fe_2O_3)` , magnetite `(Fe_3O_4)` , limonite `(FeO(OH))` and siderite `(FeCO_3)`.In the extraction of iron , oxides ores of iron, after concentration through calcination/roasting in reverberatory furnace are mixed with lime stone and coke and fed into a blast furnace. Here, the oxide is reduced to the metal.
Which of the following is obtained as a slag in the extraction of iron from haematite ore ?

A

`FeSiO_3`

B

`CaSiO_3`

C

`CaCO_3`

D

`MgSiO_3`

Text Solution

Verified by Experts

The correct Answer is:
B
`CaCO_3toCaO+CO_2`
`CaO+SiO_2 to CaSiO_3`(slag)
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The chief ores of iron are haemalite (Fe_2O_3) , magnetite (Fe_3O_4) , limonite (FeO(OH)) and siderite (FeCO_3) .In the extraction of iron , oxides ores of iron, after concentration through calcination/roasting in reverberatory furnace are mixed with lime stone and coke and fed into a blast furnace. Here, the oxide is reduced to the metal. Reducing species in the extractive metallurgy of iron from haematite ore is :

In blast furnace, the iron oxide is reduced by

In blast furnace, iron oxide is reduced by

Which of the following reaction(s) in blast furnace during extraction of iron?

The slag formed in the blast furnace during the extraction of iron from haematite is

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