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Processes for the recovery of secondary raw materials containing iron, zinc and lead, such as steelworks
Processes for the recovery of secondary raw materials containing iron, zinc and lead, such as steelworks
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机译:炼钢厂等含铁,锌和铅的二次原料的回收方法
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摘要
Evaluating steel works dust containing iron, zinc and lead comprises mixing and/or agglomerating the dust with a finely ground carbon carrier that can react. The amount of carbon compared with all carbon-consuming reactions is present strongly sub-stoichiometrically in the charge and a further amount of finely ground carbon carriers is distributed between the agglomerates. Total amount of carbon is less than 80 % of the amount necessary for the carbon-consuming reactions in the charge at a rolling temperature of less than 1150 degrees C. Preferred Features: The carbon amount is measured so that the rolling slag contains no free carbon (1 %) even without oxidation.
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