Cold start-up method for a direct smelting process

Details Cold start-up method for a direct smelting process Cold start-up method for a direct smelting process

2011-03-29

2011-03-29

Wyszomierski, George (Department: 1733)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

C075S531000, C075S532000, C075S548000

Reexamination Certificate

active

07914601

ABSTRACT:
A method of cold starting a molten bath-based direct smelting process for producing molten iron in a vessel (3) is disclosed. The method includes a step of preheating the vessel before supplying solid feed materials into the vessel. The method also includes a subsequent step of supplying an oxygen-containing gas and solid feed materials including material for forming slag, iron-containing feed material, and carbonaceous material into the vessel and generating heat and forming a bath of molten material that includes molten iron and molten slag in the vessel. This step includes supplying feed materials to promote formation of molten slag over molten iron in an early stage of developing the molten bath.

REFERENCES:
patent: 2526658 (1950-10-01), Harman et al.
patent: 3663202 (1972-05-01), Ruter et al.
patent: 5066326 (1991-11-01), Agarwal et al.
patent: 5286277 (1994-02-01), Aizatulov et al.
patent: 6602321 (2003-08-01), Dry et al.
patent: 6780351 (2004-08-01), Wirth, Jr.

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