Recovery of rare earths from waste cathode ray tube (CRT) phosphor powder by selective sulfation roasting and water leaching

  title={Recovery of rare earths from waste cathode ray tube (CRT) phosphor powder by selective sulfation roasting and water leaching},
  author={Mehmet Ali Recai {\"O}nal and Koen Binnemans},
Abstract Until recently, most displays, such as television and computer screens, were based on cathode ray tubes (CRTs). With the introduction of new types of displays including liquid crystal displays, CRTs have been widely replaced, leading to a gradual build-up of hazardous CRT powder waste. In this paper, a new approach is introduced where the valuable rare-earth elements (REEs) (i.e. yttrium and europium) in the powder are selectively recovered, leaving behind a zinc-rich residue and glass… 
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Recovery of rare earths from waste cathode ray tube (CRT) phosphor powder with organic and inorganic ligands.
Among the complexing agents tested, the pyrophosphate ion was found to be the most advantageous for the extraction of REEs from CRTs, as an alternative to the traditional methods that use highly acidic solutions (pH < 1) and elevated temperatures.
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The Recycling of Leaded Glass in Cathode Ray Tube (CRT)
Abstract In the past few decades, cathode ray tube (CRT) is widely equipped in TV and computer devices as an important part of monitors. However, in recent years, due to the rapid development of
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The achieved results allow to propose a CRT recycling process based on leaching of fluorescent powder from cathode ray tube and recovery of yttrium oxide after removing of zinc by precipitation.
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