Welcome to Metal Mine! Today is Share:
×

扫码分享

Metal Mine ›› 2014, Vol. 43 ›› Issue (10): 46-50.

Previous Articles     Next Articles

Experiment on Beneficiation of HARITA Iron Ore in Indonesia

Zhang Hongbin1,Zhao Hua1,Pan Jingsong1,Yang Renxin2,3   

  1. 1.Xinxing Cathay Resources Development Co.,Ltd.,Beijing 100070,China;2.Sinosteel Maanshan Institute of Mining Research Co.,Ltd.,Maanshan 243000,China;3.National Engineering Research Center of High Efficiency Cyclic Utilization of Metal Mineral Resources,Maanshan 243000,China
  • Online:2014-10-15 Published:2015-05-19

Abstract: Iron minerals in HARITA iron ore of Indonesia mainly exist in form of limonite and martite,with high content of slime,which belongs to refractory iron oxide ore.Beneficiation experiment is carried out based on its properties.Firstly,the slime is removed from raw ores by washing and then rough concentrate are screened into 40~6 mm blocks and -6 mm powders.Secondly,blocks are treated through dry high intensity magnetic separation,and its tailings mixing with powers are ground to be 55% -0.076 mm and separated by low intensity magnetic separation-high gradient magnetic separation.Low intensity magnetic separation is carried out on the washing slime.Block concentrate with iron grade of 59.14% and recovery of 57.92%,also powder concentrate with iron grade of 61.41% and recovery of 21.61% are received separately,with total Fe recovery of 79.53%.The results provide a basis for utilization of the HARITA iron ore,but also can be as reference for development of iron resources in the same type.

Key words: Limonite, Washing, Magnetic separation, Concentrate block, Concentrate powder