Processing Electric Arc Furnace Dust Into Saleable Chemical Products (NICE3)
Drinkard Metalox, Inc. (DMI) has developed a unique technology to completely process EAF dust into saleable products using a hydro metallurgical process. The process technology is based on digestion of EAF dust, followed by a series of steps to isolate and retrieve the individual components. The DMI technology saves energy by eliminating the need for furnace treatment, where-as the competing Waelz kiln process requires two furnace treatment steps to adequately separate EAF dust. The DMI technology reduces waste by making saleable chemicals from materials that otherwise would be landfilled or have very low value. Unlike the Waelz process, the DMI process will be implemented on-site at a steel mill, thereby eliminating the expense and risk of transporting hazardous waste.