Effects of Operating Parameters on Desulfurization of Molten Iron with Magnesium Vapor Produced In-situ by Aluminothermic Reduction of Magnesium Oxide

摘要: The effects of operating parameters on desulfurization molten iron with magnesium vapor produced in-situ by the aluminothermic reduction oxide have been studied. To promote and to make use heat iron, a refractory tube charged pellets that were made mixture magnesia aluminum powders, was immersed into melt. injected directly melt Ar or N 2 carrier gas react sulfur in it. Compared using Ar, as resulted lower efficiency due part reacting form AIN. Increasing pellet forming pressure promoted oxide, hence improved efficiency. porous Al O 3 MgO decreased rate compared dense graphite tube. In case tube, reacted and/or adsorbed initial stage experiment. reverse reaction desorption took place produce later desorbed during When used, horizontal nozzle installed improve It is possible enhance dividing charging two portions. As oxygen partial atmosphere increased, became low resulfurization more noticeable