processo para produção de aço com teor de fósforo baixo em um conversor de oxigênio.

摘要

The aim of the invention is to devise a method in which molten pig iron is refined according to a blow pattern using technically pure oxygen fed to the surface of the molten bath by means of an oxygen lance. According to the invention, the height of the lance above the surface of the molten bath and the absolute period during which a partial amount of oxygen is blown are incrementally adjusted for the blow pattern in accordance with the silicon concentration of the pig iron used and the necessary slagging of Si and Fe.