Calculation and Relation Analysis of Key Composition of Lixivium in Alkaline In-situ Leaching Uranium Ore Deposit
Received:April 04, 2014   Revised:April 26, 2014   Accepted:April 28, 2014      Published Online:September 19, 2014
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DOI:10.3969/j.issn.1007-7545.2014.10.012
KeyWord:uranium mine; in-situ leaching; lixivium; composition
        
AuthorInstitution
GAOBAI 东华理工大学
hexiwen 江西核工业地质局队
sunzhanxue 东华理工大学
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Abstract:
      The existing forms and conditions of main composition, i.e., uranium and carbonic acid derivatives, of lixivium of dilution-few reagent in-situ leaching uranium ore deposit were calculated with Geochemistry Model PHREEQC. The results show that H2CO3, HCO3- and CO32- are primary composition of carbonate derivatives, while UO2(CO3)22-, UO2(CO3)34- and UO2CO3 are primary composition of hexavalent uranium. The transformation of existing forms of main composition under neutrality condition and relationship between hexavalent uranium and carbonate derivatives are investigated. The interaction mechanism between water and mine in in-situ leaching is revealed.
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