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Technologies

The Waelz Kiln Process

Despite research into multiple alternative technologies, the traditional Waelz Kiln is the most economically viable processing method for deriving valuable zinc oxides from steel mill waste.

Protecting the Environment

Currently, US-based mini-mills using the Electric Arc Furnace (EAF) method to melt scrap steel generate more than a million tons of steel mill dust annually. Classified as a hazardous substance, most of this steel dust can be recycled to obtain zinc oxides used as a raw material for the world's zinc smelters.