攀枝花某钒钛磁铁矿尾矿综合利用

    Comprehensive Utilization of Tailings of the Vanadium-titanium Magnetite in Panzhihua

    • 摘要: 这是一篇矿产综合利用领域的论文,包含矿物加工工程和陶瓷及复合材料领域。以攀枝花某选厂钒钛磁铁矿尾矿为对象,对其进行再磨再选实验,通过“阶磨阶选”工艺,获得了TFe品位为58.59%的铁精矿;通过“一粗一扫三精”浮选流程,获得了TiO2品位达46.63%的钛精矿,钒钛磁铁矿再选尾矿中TFe、TiO2品位分别为5.71%、2.96%,实现了有效组分的高效分离。以钒钛磁铁矿再选尾矿、长石尾矿及高岭石型硫铁矿尾矿为基料,添加辅料发泡剂碳化硅,在1160℃煅烧30 min条件下,制备了体积密度为482 kg/m3,吸水率2.35%,抗压强度3.03 MPa的发泡陶瓷材料,实现了钒钛磁铁矿尾矿的综合利用。

       

      Abstract: This is a paper in the field of mineral synthesis, covering the areas of mineral processing engineering and ceramics and composites. Tailings of a vanadium-titanium magnetite plant in Panzhihua were subjected to regrinding and re-election experiments, and an iron ore concentrate with a Fe grade of 58.59% was obtained by the "step grinding and step separation" process. The ilmenite concentrate with TiO2 grade of 46.63% was obtained by adopting the flotation flowsheet of "one roughing, one scavenging, three cleaning". The TFe and TiO2 of the reselection tailings of vanadium-titanium magnetite were 5.71% and 2.96%, respectively. The process was achieved efficient separation of effective components. The foamed ceramic material with a volume density of 482 kg/m3 and a water absorption rate of 2.35%, and a compressive strength of 3.03 MPa was obtained by using the reselection tailings of vanadium-titanium magnetite, feldspar tailings and kaolinite pyrite tailings as the base material, and silicon carbide as blowing agent at 1160℃ for 30 min. The comprehensive utilization of vanadium-titanium magnetite tailings is realized.

       

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