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Título: | Production of Sponge Iron Powder by Reduction of a By-product of the Steelmaking Industry |
Autor: | Martín Hernández, María Isabel; López Gómez, Félix Antonio CSIC ORCID CVN ; Rabanal, María Eugenia; Torralba Castelló, José Manuel | Palabras clave: | Powder production Sponge iron Solid by-product |
Fecha de publicación: | 16-oct-2010 | Resumen: | Rolling mill scale is a solid steelmaking by-product that contains metallic iron (Fe), wustite (FeO), hematite (α-Fe2O3) and magnetite (Fe3O4). It also contains traces of non-ferrous metals, alkaline compounds and oils from the rolling process. A study is made of the reduction of mill scale to sponge iron, in covered crucibles, using coke at different temperatures (1050º-1150ºC) and times (3-12 h). The final treatment of the samples was carried out in a hydrogen atmosphere furnace at 900ºC for 0.5 h. The reduced samples are studied by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Oxygen analysis is carried out by combustion in a LECO oven. The reduction of mill scale allows the new use and development of this material to obtain sponge iron that can be re-used to the electric furnace as metallic load in steel manufacturing or as a raw material in the production of iron-base powder metallurgy parts. | Descripción: | Ref. Revista/libro: Proceedings of the International Powder Metallurgy Congress & Exhibition (PM2010). Volumen I. Editors: European Powder Metallurgy Association (EPMA). Florencia (Italia), October 2010. | URI: | http://hdl.handle.net/10261/28513 |
Aparece en las colecciones: | (IETCC) Comunicaciones congresos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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PM2010.pdf | 858,41 kB | Adobe PDF | Visualizar/Abrir | |
PM2010.pdf | 858,41 kB | Adobe PDF | Visualizar/Abrir |
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