A method for desulphurization of molten iron by using IF steel pouring residue
By controlling the stirring and tapping process of the IF steel casting residue, the reaction between CaO in the casting residue and sulfur in the molten iron is utilized, thus solving the problem of insufficient utilization of the IF steel casting residue in the desulfurization process and achieving low-cost and efficient molten iron desulfurization.
CN122235403APending Publication Date: 2026-06-19INNER MONGOLIA BAOTOU STEEL UNION
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- INNER MONGOLIA BAOTOU STEEL UNION
- Filing Date
- 2026-03-17
- Publication Date
- 2026-06-19
Abstract
This invention discloses a method for desulfurizing molten iron using IF steel casting residue, belonging to the field of iron and steel metallurgy. The method provided by this invention, based on the desulfurization principle, adjusts the desulfurization slag removal and stirring processes. It utilizes the calcium oxide in the casting residue to react with the sulfur in the molten iron, achieving desulfurization through stirring. By adjusting the stirring time, speed, and depth, the sulfur content of the molten iron can be stably controlled at 0.005% or below, meeting the daily steel smelting requirements and reducing desulfurizing agent consumption.
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