Energy-efficient and simultaneous extraction of lithium, rubidium and cesium from lepidolite concentrate via sulfuric acid baking and water leaching
作者: Xiufeng ZhangXiumin TanChun LiYuejun YiWeizao LiuLizhen Zhang
作者单位: 1School of Chemical Engineering, Sichuan University, Chengdu 610065, China
2Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS, Zhengzhou 450006, China
3China National Engineering Research Center for Utilization of Industrial Minerals, Zhengzhou 450006, China
刊名: Hydrometallurgy, 2019, Vol.185 , pp.244-249
来源数据库: Elsevier Journal
DOI: 10.1016/j.hydromet.2019.02.011
关键词: LepidoliteExtractionSulfuric acid bakingLithiumRubidiumCesium
原始语种摘要: Abstract(#br)Lepidolite is a valuable mineral resources of lithium, rubidium and cesium. However, most researches only focused on the lithium extraction without recovery of rubidium and cesium, and most of these processes involved energy-intensive high-temperature roasting and/or mechanical activation. In this study, simultaneous extractions of lithium, rubidium and cesium from a lepidolite concentrate were conducted through a low-temperature sulfuric acid baking and water leaching route. The influence of the extraction process parameters were systematically investigated. An optimized baking and leaching condition was determined as follows: H 2 SO 4 concentration 85 wt%, baking temperature 200 °C, acid-to-concentrate mass ratio 1.7:1, baking time 4 h, 88% concentrate particles <74 μm, and...
全文获取路径: Elsevier  (合作)
影响因子:2.169 (2012)

  • baking 烤干
  • lepidolite 锂云母
  • lithium 
  • simultaneous 同时的
  • extraction 提取
  • concentrate 浓缩
  • efficient 有用的
  • cesium 
  • Energy 能量
  • rubidium