| 摘要 |
PROBLEM TO BE SOLVED: To provide a less resulfurization molten pig iron desulfurization method that can reduce the resulfurization formed during the desulfurization processing of the molten pig iron and caused by the fine desulfurized slag suspended in the molten pig iron.SOLUTION: The method includes using a desulfurizing agent having an average particle size of 50 μm or more and 90 μm or less as a desulfurizing agent when desulfurizing a molten pig iron by adding a desulfurizing agent from above to the bath surface of a molten pig iron 3 within a treatment vessel 2 agitated by an agitation blade 4 of a mechanical agitation type desulfurization equipment.SELECTED DRAWING: Figure 1 |
