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Title: Recovery of indium from used LCD panel by a time efficient and environmentally sound method assisted HEBM

Highlights: ► In this study, we recovered indium from a waste LCD panel. ► The ITO glass was milled to obtain micron size particles in a HEBM machine. ► Effect of particle size of ITO glass on the amount of dissolved In was investigated. ► In a very short time, a considerable amount of In was recovered. ► Amount of HCl in acid solution was decreased to 40 vol.%. - Abstract: In this study, a method which is environmentally sound, time and energy efficient has been used for recovery of indium from used liquid crystal display (LCD) panels. In this method, indium tin oxide (ITO) glass was crushed to micron size particles in seconds via high energy ball milling (HEBM). The parameters affecting the amount of dissolved indium such as milling time, particle size, effect time of acid solution, amount of HCl in the acid solution were tried to be optimized. The results show that by crushing ITO glass to micron size particles by HEBM, it is possible to extract higher amount of indium at room temperature than that by conventional methods using only conventional shredding machines. In this study, 86% of indium which exists in raw materials was recoveredmore » about in a very short time.« less
Authors:
;  [1] ;  [2] ;  [3] ;  [4] ;  [1]
  1. Division of Advanced Materials Engineering and Institute for Rare Metals, Kongju National University, Cheonan 331-717 (Korea, Republic of)
  2. Department of Physics, Faculty of Art and Science, Kastamonu University, Kastamonu (Turkey)
  3. Graduate School of Green Energy Technology and Department of Nanomaterials Engineering, Chungnam National University, 79 Daehak-ro, Yuseong-gu, Dajeon 305-764 (Korea, Republic of)
  4. Advanced Materials and Processing Center, Institute for Advanced Engineering (IAE), Yongin 449-863 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22436800
Resource Type:
Journal Article
Resource Relation:
Journal Name: Waste Management; Journal Volume: 33; Journal Issue: 3; Conference: 1. international symposium on urban mining (SUM), Bergamo (Italy), 21-23 May 2012; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CRUSHING; GLASS; HYDROCHLORIC ACID; INDIUM; LIQUID CRYSTALS; MATERIALS RECOVERY; MILLING; PARTICLE SIZE; SOLUTIONS; TEMPERATURE RANGE 0273-0400 K; TIN OXIDES; WASTES