Rev. Met. Paris
Volume 106, Number 7-8, July-August 2009Steelmaking
|Page(s)||270 - 279|
|Published online||22 July 2009|
Desulfurization practices in ArcelorMittal Flat Carbon Western Europe
The development of steel refining operations at ArcelorMittal FCWE for the production of ULS steels is reported. Several plants with different equipments produce grades with S <30 ppm, thus permitting to identify the most efficient process, from hot metal desulfurization to secondary metallurgy. For sites producing steels with S <30 ppm, four secondary metallurgy routes coexist in ArcelorMittal FCWE. The Vacuum Tank Degasser makes it possible to reach very low S and N contents simultaneously. To face the increase of the share of Ultra Low Sulfur products, it is necessary to further enhance the kinetics of desulfurization by steel - slag stirring at the atmospheric pressure.
© La Revue de Métallurgie, 2009
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