2010•Hydrometallurgy of ChinaRequires access
Technological Mineralogy Study of A Uranium Ore During Acid Leaching
Liang Liang
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Abstract
The mineralogical features and chemical composition of a uranium ore,leaching middle residue and leaching tailings have been studied.The results show that uranium mineral in the ore is mainly pitchblende,and uranium-bearing minerals are thorium mineral,thorite,calcite,chlorite and phosphorite;uranium has a close relation with phosphorite;uranium exists in ore in the forms of uranium mineral,isomorphism and absorption;acid-consumed minerals are mainly calcite,chlorite and phosphorite;from ore to leaching middle residue to leaching tailings,mass fractions of uranium mineral and uranium decrease successively;fine-grained ore has a higher uranium leaching rate than coarse-grained ore.