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a 2850 F to produce decarbonized iron and 2/3 of a ton of industrial-quality oxygen per ton of iron. A thin film of metal oxide forms on the anode in the intense heat. The oxide forms a protective layer that prevents excess consumption of the base metal.
*Finery forges -- which fined pig iron to produce bar iron, using charcoal as fuel in a finery (hearth) and coal or

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