Management of electric arc furnace dust through a basic oxygen furnace
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United States of America Patent
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May 13, 2003
Grant Date -
N/A
app pub date -
Feb 6, 2002
filing date -
Feb 6, 2002
priority date (Note) -
Expired
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Abstract
A method of processing electric arc furnace (EAF) dust which involves processing the EAF dust through a basic oxygen furnace (BOF). The method encompasses recovery of iron value from the EAF dust and the concentration of zinc into a material that has more flexible opportunities for its use as a feed to zinc manufacturing processes. The iron and zinc values in the EAF dust can be added to existing iron oxide recovery processes. This allows the EAF dust to be used as a substitute iron feed for BOF's. The method of processing EAF dust and the components thereof results in the reduction of the burden for the regulatory tracking of EAF dust. In addition, the method of processing EAF dust provides economic savings which result from the reduction of processing fees and the recovery of the value of iron and zinc materials.
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