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Extracting Uranium and Molybdenum from Refractory U–Mo Associated Ore

  • Kang LiuEmail author
  • Zhiping Yang
  • Fengqi Zhao
  • Liuyin Shi
  • Yan Song
  • Xing Fan
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

A refractory U–Mo associated ore containing jordisite which enclose U, Mo component, and impede penetration, diffusion process of leaching, oxidation agent was investigated through three approaches of focusing on U, Mo extraction. The results indicate flotation beneficiation without followed metallurgical process is not appropriate because of high target metals loss rate via water leaching. H2SO4, H2O2 dosage recommended to oxidation leaching are 10 and 6–8% of ore mass, and U, Mo leaching rate are 92.71 and 52.16% respectively. For the acid pressure leaching, U, Mo leaching rate 93.75 and 76.07% are achieved under optimal temperature 130–140 °C and H2O2 dosage 8% combined with pressure air 0.6 MPa. Fluidized bed furnace roasting parameters include air flow rate 0.64 m/s, air ore ratio 0.3 m3/kg at roasting temperature 550 °C with U, Mo leaching rate 93.2 and 89.5%, so enhanced metallurgical process effectively destroy wrapper and increase metal recovery rate.

Keywords

U–Mo ore Common leaching Acid pressure leaching Oxidation roasting 

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Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  • Kang Liu
    • 1
    Email author
  • Zhiping Yang
    • 1
  • Fengqi Zhao
    • 1
  • Liuyin Shi
    • 1
  • Yan Song
    • 1
  • Xing Fan
    • 1
  1. 1.Beijing Research Institute of Chemical Engineering and Metallurgy, CNNCTongzhouChina

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