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金属矿山 ›› 2009, Vol. 39 ›› Issue (06): 69-72.

• 矿物工程 • 上一篇    下一篇

低碱度下组合抑制剂对黄铜矿和黄铁矿可浮性的影响

周源,刘亮,曾娟   

  1. 江西理工大学
  • 出版日期:2009-06-08 发布日期:2011-07-21
  • 基金资助:

    江西省自然科学基金项目(编号:0050010)。

Effect of Combined Depressors on the Floatability of Chalcopyrite and Pyrite at Low Basicity

Zhou Yuan,Liu Liang,Zeng Juan   

  1. Jiangxi University of Science and Technology
  • Online:2009-06-08 Published:2011-07-21

摘要: 研究了在pH=8的低碱度条件下,Na2S2O3+焦性没食子酸、NaClO+焦性没食子酸、CaCl2+单宁酸、KMnO4+单宁酸、NaClO+腐殖酸钠这5种组合抑制剂对黄铜矿、黄铁矿可浮性的影响,结果表明它们都可以在铜硫浮选分离时作为黄铁矿的选择性抑制剂,只不过在选择性强弱和用量上有差异。以NaClO+腐殖酸钠为代表,比较了组合抑制剂与单一抑制剂对黄铁矿的抑制效果,结果证明组合抑制剂效果更好。最后,通过红外光谱分析,探讨了NaClO+腐殖酸钠对黄铁矿的抑制机理。

关键词: 组合抑制剂, 黄铜矿, 黄铁矿, 可浮性

Abstract: The effect of five combined compressors, namely Na2S2O3+ pyrogallic acid, NaClO+ pyrogallic acid, CaCl2+tannic acid, KMnO4+tannic acid and NaClO+ sodium humate, on the floatability of chalcopyrite and pyrite at low basicity of pH=8 were studied. The results showed that all of them can be used as the selective depressor of pyrite in the flotation for separating copper from sulfur but are different in the selectivity and dosage. With the combination of NaClO+ sodium humate as example, the pyrite depression effects of combined depressor and single depressor were compared and the result proved that the combined depressor has a better effect. Finally, the depression mechanism of NaClO+ sodium humate for pyrite was studied by infrared spectroscopic analysis.

Key words: Combined depressor, Chalcopyrite, Pyrite, Flotability