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METHOD FOR RECOVERING METALLIC ELEMENTS ESPECIALLY METALLIC CHROMIUM FROM SLAG CONTAINING METAL OXIDES IN AN ELECTRIC-ARC FURNACE
METHOD FOR RECOVERING METALLIC ELEMENTS ESPECIALLY METALLIC CHROMIUM FROM SLAG CONTAINING METAL OXIDES IN AN ELECTRIC-ARC FURNACE
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机译:从电弧炉中的含渣金属氧化物中回收金属元素,特别是金属铬的方法
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摘要
The invention relates to a method for recovering metallic elements, especially metallic chromium, from slag containing oxides, especially chromium oxides, in an electric-arc furnace. According to said method, the slag is not reduced in a separate step after melting, but the following steps are carried out: a charge is introduced into tile electric-arc furnace, and melted, forming a molten metal and slag; said molten metal is tapped off, leaving the unreduced slag in the furnace vessel; a further charge of scrap metal including reducing agents for tile slag is added; the slag is reduced during the melting of said charge; and the slag and the molten metal are then lapped off. The inventive method can also be used in ladle metallurgy or converter metallurgy.
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