Converter and/or electric furnace production of low sulfur content steel comprises adding recycled and/or fresh secondary refining slag during and/or after tapping into a ladle

摘要

Converter and/or electric furnace production of low sulfur content steel comprising recycled and/or fresh secondary refining slag addition during and/or after tapping into a ladle is new. Production of steel of = 0.0100 (especially = 0.0030) wt.% sulfur content, from pig iron, scrap and fluxes in a converter and/or electric furnace, comprises adding recycled secondary metallurgical slag and/or fresh slag as slag-former during and/or after tapping into a ladle. Preferred Features: The recycled slag is solid or liquid ladle slag and the fresh slag is solid or liquid converter slag.