Production method of metallic iron

C - Chemistry – Metallurgy – 21 – B

Patent

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C21B 13/00 (2006.01)

Patent

CA 2276172

A method for producing a molten iron from a compact containing a carbonaceous reductant and an iron oxide is carried out extremely efficiently with a simple operation. The compact is supplied to a molten iron bath or a molten slag on the molten iron bath so as to float on the molten iron bath and/or the molten slag such that a part of most of the compact surface is substantially exposed to a high temperature gas atmosphere in the furnace for taking in a reduced iron generated by the reduction of the iron oxide in the compact.

L'invention concerne un procédé de production, de manière extrêmement efficace et par une opération simple, d'un fer fondu à partir d'un comprimé contenant un agent réducteur carboné et un oxyde de fer. Le comprimé est introduit dans un bain de fer fondu ou dans une scorie en fusion du bain de fer fondu de sorte qu'il flotte sur le bain de fer fondu et/ou la scorie en fusion; ainsi, une partie ou la presque totalité de la surface du comprimé est sensiblement exposée à une atmosphère gazeuse à haute température dans le fourneau de manière à absorber un fer réduit généré par la réduction d'oxyde de fer dans le comprimé.

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