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Write down the reactions taking place in blast furnace related

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Write down the reactions taking place in blast furnace related to the metallurgy of iron in the temperature range $500 K - 800 K$ . What is the role of limestone in the metallurgy of iron?

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Write down the reactions taking place in blast furnace related to the metallurgy of iron in the temperature range

500 K - 800 K

. What is the role of limestone in the metallurgy of iron?

6 mins ago

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Text solutionVerified

The reactions taking place in the lower temperature range

(500 - 800 K)

in the blast furnace are:

3 F e_{2} O_{3} + CO ⟶ 2 F e_{3} O_{4} + C O_{2}

F e_{3} O_{4} + 4 CO ⟶ 3 F e + 4 C O_{2}

F e_{2} O_{3} + CO ⟶ 2 F e O + C O_{2}

Limestone decomposes in the hot furnace, forming calcium oxide

(C a O)

which removes silicate impurity of ore as slag.

C a C O_{3} - C O_{2} C a O S i O_{2} (Impurity) (Slag) C a S i O_{3}

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Question Text	Write down the reactions taking place in blast furnace related to the metallurgy of iron in the temperature range $500 K - 800 K$ . What is the role of limestone in the metallurgy of iron?
Answer Type	Text solution:1
Upvotes	150