Iron and sulphur management options during Ni recovery from (bio)leaching of pyrrhotite tailings Part 2: Strategies for sulphur fixation during biomass-induced magnetization of goethite and jarosite
作者: Joanne Gamage McEvoyYves ThibaultSuzanne Beauchemin
作者单位: 1Natural Resources Canada, CanmetMINING, 555 Booth Street, Ottawa, Ontario K1A 0G1, Canada
刊名: Minerals Engineering, 2020, Vol.150
来源数据库: Elsevier Journal
DOI: 10.1016/j.mineng.2020.106266
关键词: JarositeGoethiteMagnetiteSulphur fixationGypsum precipitation
英文摘要: Abstract(#br)In the context of recovering Ni from pyrrhotite tailings though a (bio)leaching process, Part 1 of this investigation explored a strategy to concentrate iron from the residual jarosite-goethite assemblage using controlled release of reducing gases from biomass to promote transformation at temperatures below 500 °C to an inverse spinel phase amenable to magnetic separation. While most of the remaining sulphur is associated with K in the form of arcanite (K 2 SO 4 ), a water-soluble potassium sulfate that can easily be removed through rinsing, the present study focuses on implementing a complementary fixation strategy to minimize the significant loss of sulphur to the gas phase and to access the residual amount trapped in magnetic spinel to obtain a cleaner more valuable iron...
全文获取路径: Elsevier  (合作)
影响因子:1.207 (2012)

  • tailings 尾渣
  • goethite 针铁石
  • leaching 淋滤
  • jarosite 黄钾铁矾
  • recovery 回收
  • during 在的期间
  • sulphur 
  • biomass 生物量
  • precipitation 沉淀
  • options 保留购买权