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In the extractive metallurgy of iron from haematite ore, lime stone is added during smelting. Explain why.

+2 votes

asked Apr 4, 2019 in JEE by kratos

In the extractive metallurgy of iron from haematite ore, lime stone is added during smelting. Explain why.

jee
class-10
icse
jee mains
metallurgy

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1 Answer

+2 votes

answered Jan 2, 2021 by kratos

Best answer

Remove the infusible impurities of silica as slag

CaCO3 → CaO + CO2 ; CaO + SiO2 → CaSiO3 (slag)

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