Slag Conditioner for Electric Arc Furnace Steel Production
AssigneeI.S.M., Inc.
InventorsJoseph L. Stein, Brian J. Stein
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Abstract
A slag conditioner for electric arc furnace steel production comprising a carbonate-containing material with the balance being a reducing agent that comprises a reducing element that is easily oxidized in an exothermic reaction. The slag conditioner may further include carbonaceous material and/or an MgO-containing material. The slag conditioners may be in particulate, pellet, or briquette form. Also, a method of conditioning the slag in an electric arc furnace where steel in being produced, the method comprising introducing the particulate or pellet slag conditioners into the slag or into an interface between the slag and the molten metal or charging the briquette slag conditioners into the top of the furnace.
Claims19
A slag conditioner for electric arc furnace steel production comprising:
- 50-90 wt. % of a carbonate-containing material with the balance being a reducing agent that comprises a reducing element that is easily oxidized in an exothermic reaction,
- wherein the weight ratio of CO3 to the reducing element (CO3:reducing element) for the slag conditioner is 3-20.
A slag conditioner for electric arc furnace steel production comprising a carbonate-containing material, a carbonaceous material, and a reducing agent that comprises a reducing element that is easily oxidized in an exothermic reaction,
- wherein the slag conditioner comprises 10-40 wt. % of the carbonate-containing material, 8-87 wt. % of the carbonaceous material, and the balance is the reducing agent, and
- the weight ratio of CO3 to the reducing element (CO3:reducing element) is 3-20 and the weight ratio of CO3 to the carbon provided by the carbonaceous material (CO3:C) is 0.1-5.
Dependencies are inferred from the claim text.