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It is carbon (in the form of coke) that is added to blast furnaces to reduce iron oxide and recover the iron. This is the usual explanation, though most believe that it is the action of carbon monoxide that is involved. The equation for the reaction between iron oxide and carbon that produces iron and carbon monoxide is this one:

2Fe2O3 + 3C → 4Fe + 3CO2

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13y ago
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5mo ago

Carbon, typically in the form of coke or coal, is used to reduce iron oxide (Fe2O3) to iron in the extraction process. The carbon reacts with the oxygen in the iron oxide to form carbon dioxide gas and elemental iron.

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11y ago

In order to extract iron from iron oxide, the iron ore is placed in a blast furnace where oxygen is supposed to be extracted from it. In this process, iron oxide combines with carbon to create iron and carbon dioxide, which is in it's gaseous form.

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Q: What substance in the iron extraction process reduces iron oxide to iron?
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