Patent ID: 6989040
Filing Date: 2006-01-24
Classification: C21C,Y02P

Abstract:
1. A desulfurization agent for removing sulfur from molten iron including magnesium, a gas-producing compound and a calcium compound, at least a majority of said magnesium in the form of reclaimed magnesium, said reclaimed magnesium at least partially formed from ground particles of a briquette or puck of magnesium scrap, said ground particles having an average particle size of about 18–100 Mesh, said ground particles including 1–15% liquid, said liquid including said gas-producing compound, said gas-producing compound including lubrication fluid, cutting fluid, water or mixtures thereof, said calcium compound including calcium oxide, calcium carbide, calcium carbonate, calcium chloride, calcium cyanamide, calcium iodide, calcium nitrate or mixtures thereof, said reclaimed magnesium including pure magnesium, a solid magnesium compound, a magnesium alloy or mixtures thereof, said gas-producing compound constituting about 0.1–10 weight percent of said desulfurization agent, said calcium compound constituting at least about 1 weight percent of said desulfurization agent, said magnesium constituting at least about 5 weight percent of said desulfurization agent.