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金属矿山 ›› 2008, Vol. 38 ›› Issue (04): 43-46+55.

• 矿物工程 • 上一篇    下一篇

四川某高磷鲕状赤褐铁矿石选矿试验研究

李广涛1,张宗华2,张昱3,王雅静2   

  1. 1.湖南有色金属控股集团有限公司;2.昆明理工大学;3.昆明思莱克矿冶技术开发有限公司
  • 收稿日期:2007-02-15 出版日期:2008-04-15 发布日期:2011-07-20

Test Research on Beneficiation of Sichuan High Phosphorus Oolitic Hematite and Limonite Ore

Li Guangtao1,Zhang Zonghua2,Zhang Yu3,Wang Yajing2   

  1. 1.Hunan Nonferrous Metals Holding Group Co., Ltd;2.Kunming University of Science and Technology;3.Kunming Slack Mining and Metallurgical Technology Development Co., Ltd
  • Received:2007-02-15 Online:2008-04-15 Published:2011-07-20

摘要: 四川某铁矿石铁矿物主要以鲕状赤、褐铁矿形式存在,磷含量达0.604%,属于高磷鲕状难选铁矿石,采用常规机械选矿方法难以获得令人满意的选别指标。试验采用还原焙烧—弱磁选—反浮选工艺流程处理该矿石,获得了铁品位为60.92%、磷含量为0.225%的铁精矿,并使铁的回收率达到72.74%,解决了该铁矿资源铁品位低、含磷量高而难以利用的问题。

关键词: 高磷鲕状赤褐铁矿石, 还原焙烧, 弱磁选, 反浮选

Abstract: The iron minerals in a Sichuan iron ore occur mainly in form of oolitic hematite and limonite.With a phosphorus content of 0.604%,the ore belongs to high phosphorous refractory ore, and can not be satisfactorily processed by conventional mechanical beneficiation method.In the test, a process consisting of reduction roasting, low intensity magnetic separation and reverse flotation was used for this ore, obtaining an iron concentrate containing 60.92% iron and 0.225% phosphorus at an iron recovery of 72.74%, thus solving the difficult utilization problem of this ore due to its low iron grade and high phosphorus content.

Key words: High phosphorus oolitic hematite and limonite ore, Reduction roasting, Low intensity magnetic separation, Reverse flotation