Foaming Process of Waste LCD Glass for the Recovery of Valuable Materials from Waste LCD Pannel

폐 LCD판넬의 유가성분 회수를 위한 폐 LCD유리의 발포공정

  • Lee, Chul-Tae (Department of Chemical Engineering, Dankook University) ;
  • Park, Tae-Moon (Department of Chemical Engineering, Dankook University) ;
  • Kim, Jung-Min (Department of Chemical Engineering, Dankook University)
  • Published : 2012.04.10


Recycling method of waste LCD glass is the essential process for developing the total recycling process of LCD pannel. Pulverizing of LCD glass, determination of proper carbonacious foaming agent, the properties of residue from the recovery of valuable materials through an acid leaching process and the feasibility for the foaming of the residue obtained from leaching for indium and tin recovery were investigated for the developing of recycling method of waste LCD glass as industrial feed materials, such as heat insulation materials, sound absorbing materials, carrier of water treatment. Waste LCD glass could be pulverized finely for foaming process. Natural graphite was proper agent for foaming of the residue and the foaming technology of LCD glass would be effective recycling alternatives.


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