Desulfurization puck

Abstract

A method and composition for removing sulfur from molten ferrous material, particularly molten iron. The desulfurization agent includes one or more pucks or briquettes of deoxidizing and/or desulfurization agent. The pucks or briquettes of deoxidizing and/or desulfurization agent include at least one deoxidizing metal and at least one ferrous metal.

1 . A desulfurization agent for removing oxygen and/or sulfur from molten iron including at least one ferrous material and at least one deoxidizing metal formed into a puck or briquette said puck or briquette having an average density of at least about 6.9 g/cm 3 . 
     
     
         2 . The desulfurization agent as defined in  claim 1 , wherein said ferrous material includes carbon steel, stainless steel, or mixtures thereof, and said deoxidizing metal includes aluminum, magnesium, titanium, zirconium, or mixtures thereof. 
     
     
         3 . The desulfurization agent as defined in  claim 1 , wherein a total weight percent of said ferrous material is greater than a total weight percent of said deoxidizing metal in said puck or briquette. 
     
     
         4 . The desulfurization agent as defined in  claim 2 , wherein a total weight percent of said ferrous material is greater than a total weight percent of said deoxidizing metal in said puck or briquette. 
     
     
         5 . The desulfurization agent as defined in  claim 1 , wherein said deoxidizing metal includes reclaimed deoxidizing metal. 
     
     
         6 . The desulfurization agent as defined in  claim 4 , wherein said deoxidizing metal includes reclaimed deoxidizing metal. 
     
     
         7 . The desulfurization agent as defined in  claim 1 , wherein said ferrous metal includes reclaimed ferrous metal. 
     
     
         8 . The desulfurization agent as defined in  claim 6 , wherein said ferrous metal includes reclaimed ferrous metal. 
     
     
         9 . The desulfurization agent as defined in  claim 1 , including a liquid, said liquid content of said puck or briquette about 0.001-5 weight percent. 
     
     
         10 . The desulfurization agent as defined in  claim 8 , including a liquid, said liquid content of said puck or briquette about 0.001-5 weight percent. 
     
     
         11 . The desulfurization agent as defined in  claim 9 , wherein said liquid includes water, hydrocarbon compound, or mixtures thereof. 
     
     
         12 . The desulfurization agent as defined in  claim 1 , including a calcium compound, said calcium compound content of said puck or briquette about 0.1-20 weight percent. 
     
     
         13 . The desulfurization agent as defined in  claim 11 , including a calcium compound, said calcium compound content of said puck or briquette about 0.1-20 weight percent. 
     
     
         14 . A method for forming a deoxidizing and/or desulfurization agent comprising:
 selecting at least one ferrous material;   selecting at least one deoxidizing metal;   compressing said at least one ferrous material and at least one deoxidizing metal into a puck or briquette having a density of at least about 6.9 g/cm 3 .   
     
     
         15 . The method as defined in  claim 14 , wherein said ferrous material includes carbon steel, stainless steel, or mixtures thereof, and said deoxidizing metal includes aluminum, magnesium, titanium, zirconium, or mixtures thereof. 
     
     
         16 . The method as defined in  claim 14 , wherein a total weight percent of said ferrous material is greater than a total weight percent of said deoxidizing metal in said puck or said briquette. 
     
     
         17 . The method as defined in  claim 15 , wherein a total weight percent of said ferrous material is greater than a total weight percent of said deoxidizing metal in said puck or said briquette. 
     
     
         18 . The method as defined in  claim 14 , wherein said deoxidizing metal includes reclaimed deoxidizing metal. 
     
     
         19 . The method as defined in  claim 17 , wherein said deoxidizing metal includes reclaimed deoxidizing metal. 
     
     
         20 . The method as defined in  claim 14 , wherein said ferrous metal includes reclaimed ferrous metal. 
     
     
         21 . The method as defined in  claim 19 , wherein said ferrous metal includes reclaimed ferrous metal. 
     
     
         22 . A method for deoxidizing and/or desulfurizing molten iron which comprises adding to said molten iron a desulfurization agent, said desulfurization agent including at least one ferrous material and at least one deoxidizing metal formed into a puck or briquette said puck or briquette having an average density of at least about 6.9 g/cm 3 . 
     
     
         23 . The method as defined in  claim 22 , wherein said ferrous material includes carbon steel, stainless steel, or mixtures thereof, and said deoxidizing metal includes aluminum, magnesium, titanium, zirconium, or mixtures thereof. 
     
     
         24 . The method as defined in  claim 22 , wherein a total weight percent of said ferrous material is greater than a total weight percent of said deoxidizing metal in said puck or said briquette. 
     
     
         25 . The method as defined in  claim 23 , wherein a total weight percent of said ferrous material is greater than a total weight percent of said deoxidizing metal in said puck or said briquette. 
     
     
         26 . The method as defined in  claim 22 , wherein said deoxidizing metal includes reclaimed deoxidizing metal. 
     
     
         27 . The method as defined in  claim 25 , wherein said deoxidizing metal includes reclaimed deoxidizing metal. 
     
     
         28 . The method as defined in  claim 22 , wherein said ferrous metal includes reclaimed ferrous metal. 
     
     
         29 . The method as defined in  claim 27 , wherein said ferrous metal includes reclaimed ferrous metal.