从萤光灯中回收稀土的方法
2022-07-19
2950
762K
0
A method for recovery of rare earths from fluorescent lamps includes six steps. Individual steps are :
‧ mechanical separation of coarse fraction.
‧ separation of halophosphate.
‧ extraction of RE-luminescent material (primarily Y, Eu-oxide) that is easily soluble in acids.
‧ extraction of RE-luminescent material (for example, RE-phosphate) that is not easily soluble in acids.
‧ decomposition of residual RE-containing components (for example, RE-aluminate).
‧ final processing.