Influence Factors on Permeability of Ore Layer in Uranium CO2+O2 In-situ Leaching
Received:March 01, 2019   Revised:March 04, 2019   Accepted:March 06, 2019      Published Online:June 17, 2019
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DOI:doi:10.3969/j.issn.1007-7545.2019.07.010
KeyWord:uranium in-situ leaching; neutral leaching; permeability; chemical precipitation
     
AuthorInstitution
duchaochao 东华理工大学水资源与环境程学院
zhouyipeng 东华理工大学省部共建核资源与环境国家重点实验室;东华理工大学水资源与环境程学院
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Abstract:
      Permeability is an important factor determining leaching efficiency during process of CO2+O2 in-situ leaching. It is quite significant to raise permeability in uranium leaching. The factors leading to drop of permeability of ore layer during leaching and research progress of infiltration enhancement methods are introduced. Although problem of how to inhibit chemical precipitation is solved to a certain extent and there is progress in well washing technology, research on mechanism of permeability and micro-scale changes is yet comprehensive enough. Research of improving permeability is still at experimental exploration stage, which has not been effectively applied in actual production.
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