Table 7. Comparison of Selectivity (S), Distribution Coefficient (D), Extraction Capacity (α), and Extraction Affinity (β) of Solutesa.
| DESs | hydrocarbon | extraction type | solute | D | S | D (COSMO-RS) | S (COSMO-RS) | α (%) | β (%) | references |
|---|---|---|---|---|---|---|---|---|---|---|
| TBABr/EG | n-hexadecane | single-solute extraction | pyridine | 4.22 | 829 | 80.8 | 99.88 | (31) | ||
| indoline | 7.57 | 2,506 | 88.3 | 99.90 | (31) | |||||
| simultaneous-solute extraction | pyridine | 7.00 | 150.2 | 3.01 | 622.3 | 87.5 | 99.34 | this work | ||
| indoline | 30.00 | 643.7 | 1.83 | 378.3 | 96.8 | 99.84 | this work | |||
| DBT | 1.10 | 40.2 | 0.29 | 59.6 | 52.4 | 97.57 | this work | |||
| TBPBr/EG | n-hexadecane | single-solute extraction | pyridine | 3.74 | 244 | 78.9 | 99.59 | (31) | ||
| indoline | 7.00 | 772 | 87.5 | 99.87 | (31) | |||||
| simultaneous-solute extraction | pyridine | 8.00 | 658.7 | 3.15 | 508.0 | 88.9 | 99.85 | this work | ||
| indoline | 44.00 | 3622.7 | 1.97 | 318.0 | 97.8 | 99.97 | this work | |||
| DBT | 1.08 | 106.6 | 0.32 | 51.9 | 51.9 | 99.07 | this work |
a
Pyridine and indoline at 5 wt % and DBT at 30 wt %.