Abstract: Aiming at different distribution ratio of rare earth elements of waste phosphor in two-phase, rare earth recovery test was done by using solvent extraction separation. Influence of extractant ratio, phase comparison, balance water phase pH and feed concentration to effect were investigated. The best conditions were obtained, naphthenic acid ratio was 25% naphthenic acid +20% isooctyl alcohol +55% sulfonated kerosene, phase comparison 1∶1, balance water phase pH=4.5, concentration of solid to liquid was 0.08 g/mL hydrochloride. Rare earth product obtained after cross-current extraction under these condition, purity of Y₂O₃  and Eu₂O₃ was 98.57% and 1.21%,rare earth total content could reach to 99.78%, separation of yttrium and europium was realized.

Key words: Waste phosphor, Extraction and separation, Cross-current extraction