Method for recovering iron from copper smelting slag flotation tailings

The invention belongs to the technical field of industrial waste residue resource utilization, and particularly discloses a method for recycling iron from copper smelting slag flotation tailings. According to the method, the asphalt powder and the copper smelting slag flotation tailings serve as raw...

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Bibliographische Detailangaben
Hauptverfasser: JIN CUIYE, ZHAO SHENGNAN, SHA RULA, CHAO GETU
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention belongs to the technical field of industrial waste residue resource utilization, and particularly discloses a method for recycling iron from copper smelting slag flotation tailings. According to the method, the asphalt powder and the copper smelting slag flotation tailings serve as raw materials, direct reduction roasting-magnetic separation is conducted, direct reduction iron is produced, the iron grade in the product is larger than 92%, the product can be directly used as a steelmaking raw material, and the total recovery rate of iron is larger than 80%. According to the method, the asphalt powder serves as a reducing agent and has the effect of a slag former, efficient recycling of iron in the copper smelting slag flotation tailings can be achieved through direct reduction-magnetic separation, and the purposes of simplifying the technological process, reducing the production cost, saving energy, reducing consumption and efficiently utilizing resources are achieved. 本发明属于工业废渣资源化利用技术领域,具体公开了一种从