Study of Affecting Factors of Uranium Recovery from Lixivium of Uranium Ores
Received:September 18, 2014  Revised:September 23, 2014
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DOI:10.3969/j.issn.1007-7545.2015.02.006
KeyWord:uranium ores; lixivium; resins adsorption; elution; precipitation
           
AuthorInstitution
LIU yu-long 南华大学 铀矿冶生物技术国防重点学科实验室
WANG Qing-liang 南华大学 铀矿冶生物技术国防重点学科实验室
LI Guang-yue 南华大学 铀矿冶生物技术国防重点学科实验室
DING De-xin 南华大学 铀矿冶生物技术国防重点学科实验室
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Abstract:
      Uranium recovery from lixivium of uranium ore column leaching from one uranium mine and its affecting factors, such as resin adsorption, eluant eluting and precipitant precipitation, were studied. The results show that high concentration of uranium is beneficial to resin adsorption with 201×7 anion resin at pH=1.5~2.0. The elution sequence of anion on uranium from resins is as nitrate ion, chlorine ion and sulfate ion under the same concentration, and higher concentration exerts more influence. In precipitation system, slight vibration can accelerate uranium particles precipitation and improve quality of yellow cake with pH of 7.0~8.0 and temperature of 40~ 60 ℃.
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