Method and apparatus for the production of cast iron, cast iron produced according to said method

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United States of America Patent

PATENT NO 11421289
APP PUB NO 20210214812A1
SERIAL NO

17214401

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Abstract

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A method for the production of cast iron starting from pre-reduced iron ore (DRI) with an electric arc furnace includes the steps of preparing a charge of pre-reduced iron ore DRI having a metallization higher than 90% and containing over 2.8% by weight of carbon, wherein at least 80% of the carbon is combined with the iron to form iron carbide Fe3C; charging the charge of pre-reduced iron ore into the electric arc furnace; and melting the DRI charge to form liquid cast iron having at least 80% by weight of actual carbon content deriving from the carbon in the charge of pre-reduced iron ore, the melting step being in a reducing atmosphere and in a melting chamber of the electric arc furnace subjected to a positive internal pressure generated by the gases produced by reduction reactions that develop during melting.

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Patent Owner(s)

Patent OwnerAddress
TENOVA S P AVIA MONTE ROSA 93 MILANO 20149

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Giavani, Cesare Milan, IT 8 6
Memoli, Francesco Pittsburgh, US 9 34
Reali, Silvio Maria Milan, IT 11 25
Shoop, Kyle James Pittsburgh, US 2 2

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