Method and apparatus for producing metallized iron ore

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

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75 26, 266157, C22B 110

Patent

active

042025346

ABSTRACT:
An apparatus and process for producing metallized iron ore by direct reduction techniques for use in iron and steelmaking furnaces, the apparatus and process first involving separation and treatment of run-of-mine iron ore to produce controlled and optimum size fractions for reduction and metallization in suitable direct reduction systems. The apparatus and process further involves a particular size fraction entering a series of staged fluidized bed reduction systems, each system provided with auxiliary ore feeding and preheating facilities, and with the process provided with a single source of, or production facilities for, high-temperature reducing gases which effect reduction to desired high degrees of metallization. The apparatus and process provides for essentially a complete utilization of reducing gases and for enhanced incremental scaleup capabilities to a single-line plant for the production of metallized iron ore.

REFERENCES:
patent: 3228669 (1966-01-01), Old
patent: 3246978 (1966-04-01), Porter
patent: 3257198 (1966-06-01), Volk
patent: 3295956 (1967-01-01), Whaley

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