The production of steels applying 100% DRI for nitrogen removal, the experience of ArcelorMittal Lazaro Cardenas Flat Carbon

R. Lule, F. Lopez, J. Espinoza, R. Torres, R. D. Morales

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

8 Citas (Scopus)

Resumen

ArcelorMittal Lázaro Cardenas Flat Carbon has been the steelmaking shop pioneer in the World producing the most of its steel grades applying 100% DRI. This technology allows the steel production with low Nitrogen content (30-35 ppm for LCAlK and 35-45 ppm for API X steel grades). It has been established that the main methods for Nitrogen removal are: Carbon Oxidation and the Usage of high proportions of DRI. The usage of 100% DRI promotes since the beginning of the heat a very important CO evolution that protects the metal bath from the air filtration. The high Carbon contained in the DRI is one of the key of success because promote a vigorous foaming slag formation through all the heat. The variation in the %C in the DRI and its effect in the final Nitrogen in the steel will be discussed in this presentation. A mathematical model for phosphorus reaction and nitrogen evolution is applied in order to explain the results.

Idioma originalInglés
Título de la publicación alojadaAISTech 2009 - Proceedings of the Iron and Steel Technology Conference
Páginas489-498
Número de páginas10
EstadoPublicada - 2009
Publicado de forma externa
EventoIron and Steel Technology Conference, AISTech 2009 - St. Louis, MO, Estados Unidos
Duración: 4 may. 20097 may. 2009

Serie de la publicación

NombreAISTech - Iron and Steel Technology Conference Proceedings
Volumen1
ISSN (versión impresa)1551-6997

Conferencia

ConferenciaIron and Steel Technology Conference, AISTech 2009
País/TerritorioEstados Unidos
CiudadSt. Louis, MO
Período4/05/097/05/09

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