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Effect of Acid Dissolution Conditions on Recovery of Valuable Metals from Used Plasma Display Panel Scrap

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The objective of this particular study was to recover valuable metals from waste plasma display panels using high energy ball milling with subsequent acid dissolution. Dissolution of milled (PDP) powder was studied in HCl, HNO3, and H2SO4 acidic solutions. The effects of dissolution acid, temperature, time, and PDP scrap powder to acid ratio on the leaching process were investigated and the most favorable conditions were found: (1) valuable metals (In, Ag, Mg) were recovered from PDP powder in a mixture of concentrated hydrochloric acid (HCl:H2O = 50:50); (2) the optimal dissolution temperature and time for the valuable metals were found to be 60°C and 30 min, respectively; (3) the ideal PDP scrap powder to acid solution ratio was found to be 1:10. The proposed method was applied to the recovery of magnesium, silver, and indium with satisfactory results.
Twórcy
autor
  • Division of Advanced Materials Engineering and Institute for Rare Metals, Kongju National University, Cheonan 331-717, Korea (Republic of)
autor
  • Division of Advanced Materials Engineering and Institute for Rare Metals, Kongju National University, Cheonan 331-717, Korea (Republic of)
autor
  • Division of Advanced Materials Engineering and Institute for Rare Metals, Kongju National University, Cheonan 331-717, Korea (Republic of)
autor
  • Division of Advanced Materials Engineering and Institute for Rare Metals, Kongju National University, Cheonan 331-717, Korea (Republic of)
autor
  • Korea Basic Science Institute, Daejeon City, Korea (Republic of).
autor
  • Department of Interdisciplinary Eco Science, Sungshin University, Seoul, Korea
autor
  • Division of Advanced Materials Engineering and Institute for Rare Metals, Kongju National University, Cheonan 331-717, Korea (Republic of)
Bibliografia
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Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-0a9c44dd-bca8-48df-afe3-f90eae6a142c
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