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Metal Mine ›› 2013, Vol. 42 ›› Issue (07): 93-96.

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Beneficiation Tests of a Low Grade Phosphate in Hebei

Zhao Binghui,Shi Youjun,Kang Zhiqian,Ge Min,Tian Jiangtao,Wei Gang   

  1. Hebei Province Geological and Mineral Center Laboratory
  • Online:2013-07-15 Published:2013-08-12

Abstract: A low grade phosphate ore in Hebei belongs to the P-Fe containing biotite pyroxenite with feature of ore exposing to the surface and higher level of weathering. The technical conditions were investigated by the process of phosphorus floatation and then low intensity magnetic separation for iron concentration. The results showed that phosphorus concentrate with P2O5 grade of 34.19%,Fe content of 0.23% and P2O5 recovery of 95.24%,and iron concentrate with Fe grade of 64.31%,P2O5 content of 0.11%,TFe recovery of 48.86% and mFe recovery of 97.88% were finally obtained by the process of one-roughing,three-cleaning,one-scavenging and middles back to the flow-sheet in turn for phosphorus floatation,and then one roughing and one cleaning of low intensity magnetic separation for iron concentration from phosphorus tailings.

Key words: Low grade phosphate, Apatite, Magnetite, Flotation and magnetic separation