Physics, asked by ranit90, 11 months ago

Role of limestone in the manufacture of pig iron from haematite

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Answered by abhishekkumar100

Iron is extracted from its ore,haematite, in a blast furnace. ... Thelimestone decomposes in the hot furnace, forming calcium oxide. This reacts with the sandy impurities (silicon dioxide) to form a slag. The slag can be used in making roads.

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