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you can smelt it. You put it in a blast furnace with carbon. This will be able to separate the iron from the iron ore

The carbon is in the form of coke, providing both fuel for the huge amount of heat at the high temperature needed, and the carbon necessary to separate chemically the iron from the iron-oxide which is the ore itself.

Limestone is added as a flux to help remove silica and other impurities as molten "slag" that floats on the molten iron, and is tapped off separately.

The "blast" part refers to the powerful blasts of air pre-heated by the furnace's flue gases, and blown into the fire to raise it to white heat.

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12y ago

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