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现代矿业 ›› 2014, Vol. 30 ›› Issue (06): 10-14.

• 采矿·矿物加工 • 上一篇    下一篇

BK430在铝土矿反浮选脱硅中的应用

李松清1,2,程新朝3   

  1. 1.北京矿冶研究总院;2.矿物加工科学与技术国家重点实验室;3.中铁资源集团有限公司
  • 出版日期:2014-06-15 发布日期:2015-08-17
  • 基金资助:

    * 基金项目:国家高新技术研究发展计划(863计划)资助(项目编号:2013AA064102);北京矿冶研究总院院基金项目资助(编号:YJ—2012—03)。

Application of BK430 in Bauxite Reverse Flotation for Desilication

Li Songqing1,2,Cheng Xinchao3   

  1. 1.Beijing General Research Institute of Mining and Metallurgy;2.State Key Laboratory of Mineral Processing Science and Technology;3.China Railway Resources Group Co., Ltd.
  • Online:2014-06-15 Published:2015-08-17

摘要: 考察了以BK430作为捕收剂对中国铝土矿资源中一水硬铝石、伊利石和高岭石3种典型矿物的浮选行为。单矿物试验结果表明:在不添加抑制剂和弱酸性条件下,BK430对高岭石和伊利石的捕收力明显强于一水硬铝石;添加一水硬铝石抑制剂DF,有助于进一步扩大一水硬铝石与2种铝硅酸盐矿物的可浮性差异;人工混合矿的试验结果与单矿物试验结果比较吻合。对河南某铝硅比为4.43的铝土矿进行了反浮选脱硅试验,经过脱泥—反浮选可以获得Al2O3/SiO2为 9.21,Al2O3回收率为62.49%的精矿。BK430有望成为一种在近中性条件下铝土矿反浮选的脱硅捕收剂。

关键词: 铝土矿, 反浮选, BK430, 近中性

Abstract: Flotation behavior of three typical bauxite resources in China was investigated using BK430 as collector. Monomineral experiment results showed that: BK430 have more intensively collecting ability for kaolinite and illite than diaspore with no depressor and weak acid conditions; the collecting ability was enlarged further when added with depressor DF for diaspore; artificial mixed minerals and monomineral test results fit well. Reverse flotation tests for desilication have been carried out on a bauxite, Henan, with alumina silica ratio of 4.43. After desliming—reverse flotation process, concentrate with Al2O3/SiO2 of 9.21, Al2O3 recovery of 62.49% was received. BK430 is expected to become a reverse flotation collector for desilication of bauxite under nearly neutral condition.

Key words: Bauxite, Reverse flotation, BK430, Nearly neutral