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金属矿山 ›› 2010, Vol. 39 ›› Issue (10): 65-67.

• 矿物工程 • 上一篇    下一篇

镍黄铁矿自诱导和外控电位浮选行为研究

陈勇,宋永胜   

  1. 北京有色金属研究总院
  • 出版日期:2010-10-15 发布日期:2010-11-09
  • 通讯作者: 陈勇,100088 北京市新街口外大街2号。
  • 作者简介:陈勇(1985—),男,北京有色金属研究总院生物冶金国家工程实验室,硕士研究生。

Study of the Pentlandite Self-induced and Externally Controlled Voltages Flotation Behavior

Chen Yong,Song Yongsheng   

  1. Beijing General Research Institute of Nonferrous Metals
  • Online:2010-10-15 Published:2010-11-09

摘要: 研究了镍黄铁矿自诱导和外控电位浮选的基本行为。结果表明,镍黄铁矿在酸性条件下,可实现自诱导浮选,并且通过外控电位可以控制它的浮选行为;但碱性条件下镍黄铁矿不能实现自诱导浮选,即使施加外控电位也难以改变它的浮选行为。通过对外控电位浮选循环伏安曲线的分析,单质硫可能是镍黄铁矿表面形成的主要的疏水性产物。

关键词: 镍黄铁矿, 自诱导, 外控电位, 浮选

Abstract: The basic behavior of self-induced flotation and externally controlled voltages flotation of pentlandite was investigated.It was shown that pentlandite exhibit good self-induced floatability in the acidic condition and the self-induced floatability can be changed under externally controlled voltages.However,the self-induced floatability of pentlandite can not be realized and even hardly be improved by externally controlled voltages in alkaline condition.Through the cyclic voltammetric curve analysis on the externally controlled voltages,the sulphur element may be the primary hydrophobic entity on the surface of pentlandite.

Key words: Pentlandite, Self-induced, Externally controlled voltages, Flotation