Effect of Sodium Metabisulfite on Selective Flotation of Chalcopyrite and Molybdenite
Effect of Sodium Metabisulfite on Selective Flotation of Chalcopyrite and Molybdenite
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DOI：
10.3390/min11121377
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发表时间：
2021-12
期刊：
影响因子：
2.5
通讯作者：
Yuki Semoto;G. Suyantara;H. Miki;K. Sasaki;T. Hirajima;Yoshiyuki Tanaka;Yuji Aoki;Kumika Ura
中科院分区：
文献类型：
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作者：
Yuki Semoto;G. Suyantara;H. Miki;K. Sasaki;T. Hirajima;Yoshiyuki Tanaka;Yuji Aoki;Kumika Ura
采用焦亚硫酸钠（MBS）优先浮选黄铜矿和辉铜矿。对黄铜矿和辉铜矿进行了单矿物和混合矿物的微浮选试验。单矿物微浮选试验结果表明，MBS处理显著降低了黄铜矿的可浮性，而对菱铁矿的可浮性影响较小。混合矿物的微浮选试验结果表明，MBS处理剂可作为黄铜矿的选择性浮选剂用于黄铜矿和辉铜矿的优先浮选。此外，添加柴油或煤油可显著提高MBS处理黄铜矿和辉铜矿的优先浮选分离效率。根据X射线光电子能谱分析结果，提出了MBS选择性抑制黄铜矿和辉铜矿浮选的机理。
Sodium metabisulfite (MBS) was used in this study for selective flotation of chalcopyrite and molybdenite. Microflotation tests of single and mixed minerals were performed to assess the floatability of chalcopyrite and molybdenite. The results of microflotation of single minerals showed that MBS treatment significantly depressed the floatability of chalcopyrite and slightly reduced the floatability of molybdenite. The results of microflotation of mixed minerals demonstrated that the MBS treatment could be used as a selective chalcopyrite depressant in the selective flotation of chalcopyrite and molybdenite. Furthermore, the addition of diesel oil or kerosene could significantly improve the separation efficiency of selective flotation of chalcopyrite and molybdenite using MBS treatment. A mechanism based on X-ray photoelectron spectroscopy analysis results is proposed in this study to explain the selective depressing effect of MBS on the flotation of chalcopyrite and molybdenite.