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basic–oxygen process
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Basic–oxygen Process
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Most widely used method of steelmaking, involving the blasting of oxygen at high pressure into molten pig iron.
Pig iron from a blast furnace, together with steel scrap, is poured into a converter, and a jet of oxygen is then projected into the mixture. The excess carbon in the mix and other impurities quickly burn out or form a slag, and the converter is emptied by tilting. It takes only about 45 minutes to refine 350 tonnes/400 tons of steel. The basic–oxygen process was developed 1948 at a steelworks near the Austrian towns of Linz and Donawitz. It is a version of the Bessemer process.
© Research Machines plc 2008. All rights reserved. Helicon Publishing is a division of Research Machines plc.
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