Patent ID: 8771399
Filing Date: 2014-07-08
Classification: C21C,C22B

Abstract:
1. A method for removing oxygen, sulfur, or mixtures thereof from molten iron comprising: (a) obtaining reclaimed ferrous scrap metal coated with oil, (b) obtaining reclaimed deoxidizing/desulfurizing scrap metal coated with oil, (c) combining and pressing said reclaimed ferrous scrap metal coated with oil and said reclaimed deoxidizing/desulfurizing scrap metal coated with oil to form a plurality of pucks or plurality of briquettes, (b) placing said plurality of pucks or briquettes into an iron trough or ladle; (c) pouring molten iron into said iron trough or ladle after said plurality of pucks or briquettes were placed into an iron trough or ladle, such that said plurality of pucks or briquettes do not float to the surface of said molten iron after said molten iron is poured into said iron trough or ladle, wherein the oil of said plurality of pucks or briquettes volatilizes on contact with the molten iron, and produces a gas that enhances the reaction between the deoxidizing/desulfurizing scrap metal and the sulfur in the molten iron by at least partially mixing the deoxidizing/desulfurizing scrap metal throughout the molten iron.