Solute migration during acid in-situ leach mining of sandstone hosted uranium deposits

摘要：

Through experiments of solute migration and geochemical simulation, this paper reveals the characteristics and conditions of uranium transport during acid in-situ leaching process. The species and concentration ofuranium are closely related to such hydrogeochemical conditions as pH and Eh values. The predominant uranium species are UO2SO4 and UO22+ for the leaching solution with pH values ranging from 1.9 to 4.4. The uranium concentration increases gradually until reaching saturation with the extension of leaching flow-path.The leaching site is subdivided into six zones according to uranium concentration and hydrogeochemistry.

作者: B.Gao G.Wang Z.Sun

作者单位: China University of Geosciences, Beijing;East China Institute of Technology, Fuzhou, Jiangxi Provinc China University of Geosciences, Beijing East China Institute of Technology, Fuzhou, Jiangxi Province

会议类型: 国际会议

会议名称: 第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)

会议地点: 昆明

会议语种:英文

页码: 1381-1384

在线出版日期: 2007-07-31（万方平台首次上网日期，不代表论文的发表时间）