Method and apparatus for smelting iron ore

Details Method and apparatus for smelting iron ore Method and apparatus for smelting iron ore

1998-03-17

2000-04-25

Willis, Prince

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75452, 75958, C21B 1100

Patent

active

060539615

ABSTRACT:
Method and apparatus for smelting iron ore in which iron ore is preheated and partly reduced within a first reaction zone and then further reduced in a second reaction zone. The first reaction zone can be a shaft reduction furnace and the second reaction zone can be a melter gasifier. An auxiliary third reaction zone partially oxidizes a carbonaceous material to produce char for the third reaction zone. A reducing gas produced by partial oxidation of the char is used to effect the partial reduction conducted within the first reaction zone. Volatile substances contained within a heating gas produced by the partial oxidation within the auxiliary third reaction zone is further oxidized and used to preheat the iron ore within the first reaction zone.

REFERENCES:
patent: 5431710 (1995-07-01), Ebenfelt
patent: 5529599 (1996-06-01), Calderon

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