AISTech 2022

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New Process for Hazardous Contaminated Steel Scrap to Produce Clean EAF Feedstock (Room 406)

Steel scrap contaminated with hazardous components like asbestos, mercury or hexavalent chrome is widely available worldwide. The processing is not permitted in ordinary steel plants due to legislation for hazardous emissions control. Purified Metal Co. built the first plant in Delfzijl, Netherlands, which is able to treat hazardous ferrous waste. Metallurgical and operational experiences of first industrial campaigns, with asbestos and Cr(VI) scraps are described. The products are neutralized purified metal blocks with chemically known composition and carbon content of 3 wt.% which can be used as feedstock for electric arc furnaces.