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Metal Mine ›› 2014, Vol. 43 ›› Issue (12): 75-78.

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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

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