|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Deriving Value from Challenging Waste Materials: Recycling and Sustainability Joint Session
||D-10: Indium Extraction of Obsolete LCD Screen
||Gabrielle Luana Jimenez, Viviane Moraes, Jorge Tenório, Denise Espinosa
|On-Site Speaker (Planned)
The LCD screens (liquid crystal display) are composed of ceramic, metallic and polymeric materials, and are present in most consumer electronics devices such as mobile computers and televisions. Due to the turnover of electronics demand of such waste has grown exponentially. The aim of this research is to define hydrometallurgical routes to solid-liquid extraction and liquid-liquid of the indium present in LCD waste. The indium is found in form of ITO (indium tin oxide). This route involves the extraction of leaching in an acid (sulfuric acid, nitric acid and aqua regia), which was in different concentrations. The control parameters for extraction temperature were 50°C to 90°C and the time was 1 to 4 hours.