The LED lighting optoelectronic industry of supply chain integrity in Taiwan. The yield and production value of LED light were respectively the rank of first and second in the world, among market share just behind Japan. As a consequence of economically important and limited resource, material recovery has received a great attention from this study. Moreover, the waste fluorescent powder of metal yttrium (Y) has a strong influence on the industry in Taiwan. Therefore, recovery and purified concentration of Y ions within the fluorescent powder is very important. This study recovered and purified Y ions within the waste fluorescent powder by a supported liquid membrane with strip dispersion (SLMSD) technique. The results showed that Y ions can be leaching more than 95% that by using 5 N HCl dissolved the waste fluorescent powder. When using mixture of acidic extractant 0.25 M di-(2-ethylhexyl)phosphoric acid (D2EHPA) and diluent (Isopar –L) as organic phase as well as 7 N HCl as stripping agent, the experiments got more than 90% Y recovery rate and 330% concentrated rate. This study also recover the cobalt (Co) from waste lithium (Li) batteries. With increasing the mobile equipment, the use amount of Li battery increases every year. Therefore, recovery and purified concentration of Co ions within the Li batteries, that the economic benefits can’t be underestimated. In this study, using hollow fiber module recovered and purified Co ions within the waste lithium Li battery by a SLMSD technique. The results showed the Co ions can be leaching more than 95% by using 6 M HCl dissolved the waste Li batteries powder. The mixture of acidic extractant 0.25 M di-(2-ethylhexyl)phosphoric acid (D2EHPA) and diluent (Isopar –L) as organic phase as well as 6 M HCl as stripping agent, the experiments got more than 65% Co recovery rate and 220% concentrated rate.

Supported liquid membrane, Yttrium, Cobalt, D2EHPA