Method For Treating Desulfurization Slag
Assigneevoestalpine Stahl GmbH
InventorsKarl Pilz, Bertram Fritz, Jürgen Antrekowitsch, Gerald Schneeberger
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Abstract
The invention relates to a method for treating desulfurization slag, in which desulfurization slag from pig iron desulfurization is conveyed to a suitable unit in which the desulfurization slag is melted at a temperature of at least 1,400° C., said unit assuring a thorough mixing, and the treatment takes place in the unit under slightly oxidizing conditions, with the SO2 generated being collected from the roasting gas and supplied for further utilization.
Claims16
1-12. (canceled)
A method for treating desulfurization slag, in which desulfurization slag from pig iron desulfurization is conveyed to a unit including a burner, in which the desulfurization slag is melted at a temperature of at least 1,400° C., said unit assuring a thorough mixing, wherein the treatment takes place in the unit under slightly oxidizing conditions, wherein a roasting gas including SO2 is generated, wherein the generated SO2 is collected from the roasting gas and supplied for further utilization.
Dependencies are inferred from the claim text.