DOI QR코드

DOI QR Code

Recovery of Indium for the Recycling of End-of-life Flat Panel Display Devices

폐 디스플레이 재활용을 위한 인듐 회수기술

  • Uhm, Sunghyun (Advanced Materials & Processing Center, Institute for Advanced Engineering) ;
  • Cho, Sungsu (Advanced Materials & Processing Center, Institute for Advanced Engineering) ;
  • Lee, Sooyoung (Advanced Materials & Processing Center, Institute for Advanced Engineering)
  • 엄성현 (고등기술연구원 신소재공정센터) ;
  • 조성수 (고등기술연구원 신소재공정센터) ;
  • 이수영 (고등기술연구원 신소재공정센터)
  • Received : 2015.07.09
  • Published : 2015.08.10

Abstract

Recovery of indium from secondary sources have been attracting over years not only because of increasing demand together with development of flat panel display industry but also industrial criticality of indium. Applied technology to recover indium for recycling of end-of-life FPD devices can be broadly divided into three major steps, disassembly or dismantling, enrichment or upgrading, and refining or purification. In addition, advanced technology such as zone-refining can be employed for ultra-high purity products. In this mini-review, we present currently applied technologies for recovery of indium and the outlook for total recycling of FDP devices.

인듐은 디스플레이 산업의 발전과 더불어 그 수요가 급격하게 증가하고 있으며 산업적 중요도도 높아 보조 공급원으로 부터의 회수기술 개발이 점점 관심을 얻고 있다. 폐 디스플레이 재활용을 위한 인듐 회수기술은 크게 해체분리, 선별농축 그리고 정제 공정으로 구성되어 있으며 목표하는 소재의 최종 순도에 따라 추가적으로 고도화 공정이 도입된다. 본 논문에서는 인듐 회수를 위해 적용되고 있는 기술에 대해서 소개하며 연구동향과 향후 전망 등에 고찰하였다.

Keywords

References

  1. J. G. Kim, Investigation on Recycling in Material Flow on Indium Demand Industry, J. Kor. Powd. Met. Inst., 19, 72-78 (2012). https://doi.org/10.4150/KPMI.2012.19.1.072
  2. D. Nelen, S. Manshovena, J. R. Peeters, P. Vanegasc, N. D'Haese, and K. Vrancken, A multidimensional indicator set to assess the benefits of WEEE material recycling, J. Clean. Prod., 83, 305-316 (2014). https://doi.org/10.1016/j.jclepro.2014.06.094
  3. Y.-I. Lee and Y.-H. Choa, Recycling Method of Used Indium Tin Oxide Targets, Kor. J. Mater. Res., 22, 174-179 (2012). https://doi.org/10.3740/MRSK.2012.22.4.174
  4. J. Yang, T. Retegan, and C. Ekberg, Indium recovery from discarded LCD panel glass by solvent extraction, Hydrometallurgy, 137, 68-77 (2013). https://doi.org/10.1016/j.hydromet.2013.05.008
  5. J. Cui and L. Zhang, Metallurgical recovery of metals from electronic waste: A review, J. Hazard. Mater., 158, 228-256 (2008). https://doi.org/10.1016/j.jhazmat.2008.02.001
  6. J. Cui and E. Forssberg, Mechanical recycling of waste electric and electronic equipment: a review, J. Hazard. Mater., 99, 243-263 (2003). https://doi.org/10.1016/S0304-3894(03)00061-X
  7. K. Elo and E. Sundin, Automatic Dismantling Challenges in the Structural Design of LCD TVs, Procedia CIRP, 15, 251-256 (2014). https://doi.org/10.1016/j.procir.2014.06.058
  8. J. Li, S. Gao, H. Duan, and L. Liu, Recovery of valuable materials from waste liquid crystal display panel, Waste Manag., 29, 2033-2039 (2009). https://doi.org/10.1016/j.wasman.2008.12.013
  9. Y. He, E. Ma, and Z. Xu, Recycling indium from waste liquid crystal display panel by vacuum carbon-reduction, J. Hazard. Mater., 268, 185-190 (2014). https://doi.org/10.1016/j.jhazmat.2014.01.011
  10. K. Inoue, M. Nishiura, H. Kawakita, K. Ohto, and H. Harada, Recovery of indium from spent panel of liquid crystal display panels, Kagaku Kougaku Ronbun., 34, 282-286 (2008). https://doi.org/10.1252/kakoronbunshu.34.282
  11. H. N. Kang, J. Lee, and J. Kim, Recovery of indium from etching waste by solvent extraction and electrolytic refining, Hydrometallurgy, 110, 120-127 (2011). https://doi.org/10.1016/j.hydromet.2011.09.009
  12. S. M. J. Koleini, H. Mehrpouya, K. Saberyan, and M. Abdolahi, Extraction of indium from zinc plant residues, Miner. Eng., 23, 51-53 (2010). https://doi.org/10.1016/j.mineng.2009.09.007
  13. J. Ruan, Y. Guo, and Q. Qiao, Recovery of indium from scrap TFT-LCDs by solvent extraction, Procedia Environ. Sci., 16, 545-551 (2012). https://doi.org/10.1016/j.proenv.2012.10.075
  14. H. Hasegawa, I. M. M. Rahman, Y. Egawa, H. Sawai, Z. A. Begum, T. Maki, and S. Mizutani, Recovery of indium from end-of-life liquid-crystal display panels using aminopolycarboxylate chelants with the aid of mechanochemical treatment, Microchem. J., 106, 289-294 (2013). https://doi.org/10.1016/j.microc.2012.08.010
  15. T. Kato, S. Igarashi, Y. Ishiwatari, M. Furukawa, and H. Yamaguchi, Separation and concentration of indium from a liquid crystal display via homogeneous liquid-liquid extraction, Hydrometallurgy, 137, 148-155 (2013). https://doi.org/10.1016/j.hydromet.2013.06.004
  16. G. M. Ritcey and A. W. Ashbrook, Solvent Extraction Principles and Applications to Process Metallurgy Part I, Elsevier, Amsterdam (1984).
  17. C.-T. Lee, T.-M. Park, and J.-M. Kim, Foaming Process of Waste LCD Glass for the Recovery of Valuable Materials from Waste LCD Panel, Appl. Chem. Eng., 23, 195-203 (2012).