Production method of metallic iron
AssigneeKabushiki Kaisha Kobe Seiko Sho
InventorsTakuya Negami, Akira Uragami
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Abstract
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 or 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.
Claims14
A production method of a metallic iron in a furnace by reducing a compact containing a carbonaceous reductant and an iron oxide by heat, comprising the steps of:
- supplying the compact directly to a molten iron bath or to a molten slag on the molten iron bath, in a furnace having a high temperature atmosphere;
- heating the supplied compact from both above and below the furnace;
- and
- causing the supplied compact to float on the molten iron bath and/or the molten slag such that at least a part of the compact surface is substantially exposed to the high temperature gas atmosphere in the furnace, until the iron oxide in the compact is substantially reduced.
Dependencies are inferred from the claim text.