Fluidized bed process for the production of iron carbide

Details Fluidized bed process for the production of iron carbide Fluidized bed process for the production of iron carbide

1998-04-06

2000-05-16

Willis, Jr., Prince

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75450, 75452, 423439, C21B 1300, C21B 1500

Patent

active

060631554

ABSTRACT:
A process for conversion of iron oxide to iron carbide, including the steps of: providing a fluidized bed reactor having a metallizing zone and a carburizing zone; feeding iron oxide to the reactor; feeding a reducing gas to the reactor so as to provide reduced iron in the metallizing zone; and feeding a carburizing gas to the carburizing zone so as to provide a final iron carbide product in the carburizing zone having between about 2.2% wt. and about 6.5 wt. % carbon and at least about 80% wt. iron.

REFERENCES:
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patent: 4060414 (1977-11-01), Kaufman
patent: 5137566 (1992-08-01), Stephens et al.
patent: 5733357 (1998-03-01), Stephens et al.
patent: 5810905 (1998-09-01), Shultz
patent: 5837031 (1998-11-01), Miyashita et al.
patent: 5869018 (1999-02-01), Stephens, Jr.
Hager et al., PCT publication WO 92/02824, "Method for Controlling the Conversion of Iron-Containing Reactor Feed into Iron Carbide," Feb. 1992.

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