One of the mysteries of the English language finally explained.
A steel-making process in which a jet of oxygen is delivered by a lance on to a molten mixture of pig iron and scrap steel in a retort lined with a basic refractory. Excess carbon is burnt away, producing enough heat to keep the iron molten, and the oxidized impurities are removed as gases or slag.
- ‘This gave way mid-century to the basic oxygen process, which used pure oxygen instead of air, cutting the process time from all day to just a few hours.’
- ‘The basic oxygen process is the most common process for producing steel.’
- ‘Among the primary steel melting processes are the electric arc furnace and the basic oxygen process.’
- ‘Virtually all steel is now made in integrated steel plants using a version of the basic oxygen process or in specialty steel plants (mini-mills) using an electric arc furnace process.’
- ‘More specifically, this invention is directed to a method for increasing the nitrogen content of steels made by the basic oxygen process.’
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