| 摘要 |
<p>A method and composition (200) for removing sulphur from molten ferrous material, particularly molten pig iron (30) is described. The desulfurization agent (110, 210) is at least partially coated with a heat absorbing compound (100, 220), said heat absorbing compound (100, 220) is formulated to reduce the rate said reactive desulfurizing agent (110, 210) vaporizes in said molten iron (30) and includes a compound selected from the group consisting of a carbide compound, a ferroalloy, and mixtures thereof. The desulfurizing agent (110, 210) has a particle size of at least about twice the particle size of said heat absorbing compound (100, 220). In a method for desulfurizing molten pig iron (30) a composition (200) is added to molten pig iron (30).</p> |
