Pre-treatment process for feed material for direct reduction...

Details Pre-treatment process for feed material for direct reduction... Pre-treatment process for feed material for direct reduction...

2007-02-13

2007-02-13

King, Roy (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C266S199000

Reexamination Certificate

active

10789696

ABSTRACT:
A pretreatment process for solid lump feed material for a gas and pellet/lump-based direct reduction process, comprising preheating feed material to a temperature of from about 200 C to about 500 C, without reduction, in a non-reducing atmosphere prior to charging the feed material to gas-based direct reduction furnace, thereby minimizing the formation of fines within the furnace.

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Int. J. Miner. Process. 59 (2000) 195-213. “Modeling iron ore degradation using a twin pendulum breakage device”, D.M. Weedon, F. Wilson.

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