Table 4.
Hansen solubility parameters and extraction efficiency of some solvent mixtures (xi: weight fraction of the ith component in the mixture; y: extraction yield; δmixi: Hansen solubility parameter of the mixture; D: distance between points in Hansen space).
| Mixture | x 1 | x 2 | x 3 |
y (%) |
δmix (MPa0.5) |
D (MPa0.5) |
|---|---|---|---|---|---|---|
| n-Hexane–ethanol–acetone | 0.167 | 0.167 | 0.667 | 98.55 | 19.3 | 11.5 |
| 0.333 | 0.333 | 0.333 | 94.23 | 18.7 | 10.8 | |
| Ethyl lactate–ethanol–acetone | 0.000 | 0.000 | 1.000 | 80.23 | 19.9 | 12.5 |
| 0.000 | 0.333 | 0.667 | 79.55 | 21.6 | 14.9 |