Extractant | Initial pH | Final pH | Extraction (%) | Separation factor | |||||
La | Ce | Pr | Nd | Ce/La | Pr/Ce | Nd/Pr | |||
P507 | 0.5 | 0.5 | 0.7 | 1.8 | 6 | 7 | 3.5 | 3.2 | 1.2 |
P507 | 1.0 | 1.0 | 5.0 | 16 | 37 | 40 | 3.9 | 3.2 | 1.2 |
P507 | 2.0 | 1.9 | 13 | 37 | 66 | 70 | 4.1 | 3.2 | 1.2 |
D2EHPA | 0.5 | 0.5 | 17 | 38 | 61 | 64 | 3.1 | 2.7 | 1.1 |
D2EHPA | 1.0 | 1.0 | 36 | 64 | 80 | 82 | 3.2 | 2.3 | 1.1 |
D2EHPA | 1.5 | 1.4 | 65 | 86 | 93 | 94 | 3.3 | 2.2 | 1.1 |