The reaction(s) which (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are):-

Question

Filo · Accepted Answer

Extraction

of iron is based on the reduction of Haematite (

F e_{2} O_{3}

)

with carbon.
The

process of the extraction of iron is carried out by the following steps:
1)

Concentration of ore
2) Calcination or Roasting of ore
3)

Reduction of ore
Reduction of ore:
The blast oxidizes carbon to

C O_{2}

.
$C + O_{2} \to C O_{2} + h e a t$ .
Formation

of CO2 is an exothermic reaction in which a huge amount of heat

is liberated which rises the temperature to 1900OC

in this region. As the $C O_{2}$ passes upwards, it reacts more coke

to form carbon monoxide. $C O_{2} + C \to 2 CO$ .
Reactions

in blast furnace;
$F e_{2} O_{3} + 3 C \to 2 F e + 3 CO$

$F e_{3} O_{4} + 4 CO \to 3 F e + 4 C O_{2}$

$C O_{2} + C \to 2 CO$
Overall

reaction ; $F e_{2} O_{3} + 3 CO \to 2 F e + 3 C O_{2}$ ..
Slag

formation: $C a C O_{3} \to C a O + C O_{2}$ ..
$C a O + S i O 2 \to C a S i O_{3}$ .
So the reactions in the options A,B are not preesent
Hence options C, D are correct.

Question Text	The reaction(s) which (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are):-
Answer Type	Text solution:1
Upvotes	150

The reaction(s) which (do) not occur in the reduction zone in the extraction of iron from haematite ore is (are):-

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