(from the article `steel`) Many powder-injection stations are used for desulfurization. One effective desulfurizer is a calcium-silicon alloy containing 30 percent calcium. ...
Operation that injects a chemical mixture into a ladle full of hot metal to remove sulfur prior to its charging into the Basic Oxygen Furnace. Sulfur enters the steel from the coke in the blast furnace smelting operation, and there is little the steelmaker can do to reduce its presence. Because excess sulfur in the steel impedes its welding and for...
Removal of sulfur from fossil fuels to reduce pollution. 
Removal of sulfur from the molten metal by addition of suitable compounds.