A Study on the Efficient Recovery and Separation of the Phosphor from CCFLs in End-of-Life LCD Units

Title:A Study on the Efficient Recovery and Separation of the Phosphor from CCFLs in End-of-Life LCD Units

Volume: 10 Issue: 1

Author(s): Hyun Seon Hong, Hang Chul Jung, Minhye Seo, Sunghyun Uhm, Jae Sik Yoon and Han Gil Suk

Affiliation:

Keywords: Air-jetting, phosphor, rare earth element, recovery, waste CCFLs.

Abstract: The effective recovering process that consists of air-jetting, centrifugation and air-classifying was developed for phosphor recycling from flat panel display devices. At the first processing stage of air-jetting, 95% phosphor could be recovered while the recovery rate was dependent on the dimension of CCFLs. After two subsequent stages of mechanical separation, Blue, Red and Green rich phosphor could be selectively collected. The recovery of Red phosphor was 61.2% and purity of (Y, Eu)₂O₃ was 95%.

Cite this article as:

Seon Hong Hyun, Chul Jung Hang, Seo Minhye, Uhm Sunghyun, Sik Yoon Jae and Gil Suk Han, A Study on the Efficient Recovery and Separation of the Phosphor from CCFLs in End-of-Life LCD Units, Current Nanoscience 2014; 10 (1) . https://dx.doi.org/10.2174/1573413709666131109003902