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金属矿山 ›› 2014, Vol. 43 ›› Issue (12): 75-78.

• 矿物工程 • 上一篇    下一篇

甘肃大滩某低品位钛铁矿石选矿试验

刘星1,2,3,李成秀1,2,3,刘飞燕1,2,3,程仁举1,2,3   

  1. 1.中国地质科学院矿产综合利用研究所,四川 成都 610041;2.国土资源部钒钛磁铁矿综合利用重点实验室,四川 成都 610041;3.中国地质调查局金属矿产资源综合利用技术研究中心,四川 成都 610041
  • 出版日期:2014-12-15 发布日期:2015-07-23

Beneficiation Technology for a Low-grade Ilmenite Ore in Datan of Gansu Province

Liu Xing1,2,3,Li Chengxiu1,2,3,Liu Feiyan1,2,3,Cheng Renju1,2,3   

  1. 1.Institute of Multipurpose Utilization of Mineral Resources,Chinese Academy of Geological Sciences,Chengdu 610041,China;2.Key Laboratory of Vanadium-titanium Magnetite Comprehensive Utilization,Ministry of Land and Resources,Chengdu 610041,China;3.Metal Mineral Resource Utilization Technology Research Center,Chinese Geological Survey,Chengdu 610041,China
  • Online:2014-12-15 Published:2015-07-23

摘要: 甘肃大滩某低品位钛铁矿主要有价元素为铁和钛,TFe品位为12.07%,TiO2含量为5.56%,有害元素硫、磷含量较低。钛主要分布在钛铁矿中,分布率为81.82%,是回收的主要目的矿物。为确定该资源的合理开发利用方案,对其进行了磁选—浮选试验研究。结果表明,原矿磨细至-0.074 mm占38%,在粗选磁场强度为605.1 kA/m、精选磁场强度为565.3 kA/m条件下,经1粗1精磁选可以获得TiO2品位为18.13%、对原矿回收率为76.79%的磁选精矿,磁选精矿采用自主复配合成的高效捕收剂EMG和新型抑制剂SF-101经1粗2精1扫闭路浮选试验可以获得TiO2品位47.46%、回收率88.08%的钛精矿,对原矿回收率为67.63%,可以为该钛铁矿的选别提供借鉴。

关键词: 低品位钛铁矿, 磁选, 浮选

Abstract: Main valuable elements of a low grade ilmenite ore are iron and titanium.There is 12.07% TFe,5.56% TiO2 and trace sulfur and phosphorus in the ore.Titanium mainly exists in form of ilmenite,with distribution ratio of 81.82%,which is the main recovery object.In order to insure the scheme for develop the ore,magnetic separation-flotation tests is carried out.The results show that,at the grinding fineness of 38% -0.074 mm,magnetic intensity of 605.1 kA/m for rough concentration and 565.3% kA/m for cleaning separation,through one roughing-one cleaning separation,magnetic concentrate with TiO2 grade of 18.13% and recovery of 76.79% is obtained.Using high efficient EMG as collector and novel SF-101 as depressor through one roughing-two cleaning-one scavenging process deal with the magnetic concentrate,titanium concentrate with TiO2 grade of 47.46% and recovery of 88.08% is obtained,and recovery of 67.63% for the raw ore.The results can provide references for beneficiation of the ilmenite ore.

Key words: Low-grade ilmenite, Magnetic separation, Flotation