发明名称 |
PROCESS FOR RECOVERY OF YTTRIUM AND EUROPIUM FROM LAMP PHOSPHOR WASTE |
摘要 |
This invention is related to the recycling of rare earths, and more particularly to the recovery of rare earths such as yttrium and europium from end-of-life fluorescent lamps. A new process is described to selectively recover the most valuable components of waste lamp phosphor powder. By means of an ionic liquid, the red phosphor Y2O3:Eu3+ (YOX) can be selectively dissolved without affecting the other components in the waste fraction. Of particular interest is the possibility to dissolve Y2O3:Eu3+ (YOX) without bringing the halophosphate phosphor in solution. |
申请公布号 |
WO2016065433(A1) |
申请公布日期 |
2016.05.06 |
申请号 |
WO2015BE00059 |
申请日期 |
2015.10.28 |
申请人 |
KATHOLIEKE UNIVERSITEIT LEUVEN KU LEUVEN RESEARCH& DEVELOPMENT |
发明人 |
BINNEMANS, KOEN;DUPONT, DAVID |
分类号 |
C09K11/01;H01J9/52 |
主分类号 |
C09K11/01 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|