Research Article
Relationship between Permeability Coefficient and Fractal Dimension of Pore in Ionic Rare Earth Magnesium Salt Leaching Ore
Table 6
Fractal dimension of pores in each stage of the sample during ore leaching.
| Leaching time/h | Leaching solution | A1 | B1 | C1 | Leaching solution | A2 | B2 | C2 | Fractal dimension | Growth rate/% | Fractal dimension | Growth rate/% | Fractal dimension | Growth rate/% | Fractal dimension | Growth rate/% | Fractal dimension | Growth rate/% | Fractal dimension | Growth rate/% |
| 1 | Magnesium sulfate solution | 1.526 | —— | 1.617 | —— | 1.332 | —— | Deionized water | 1.421 | —— | 1.578 | —— | 1.227 | —— | 2 | 1.589 | 4.128 | 1.742 | 7.730 | 1.421 | 6.682 | 1.489 | 4.785 | 1.624 | 2.915 | 1.315 | 7.172 | 3 | 1.678 | 5.601 | 1.886 | 8.266 | 1.562 | 9.923 | 1.524 | 2.351 | 1.651 | 1.663 | 1.367 | 3.954 | 4 | 1.782 | 6.198 | 1.924 | 2.015 | 1.689 | 8.131 | 1.572 | 3.150 | 1.684 | 1.999 | 1.414 | 3.438 | 5 | 1.854 | 4.040 | 1.943 | 0.988 | 1.741 | 3.079 | 1.617 | 2.863 | 1.702 | 1.069 | 1.459 | 3.182 | 6 | 1.924 | 3.776 | 1.956 | 0.669 | 1.778 | 2.125 | 1.648 | 1.917 | 1.714 | 0.705 | 1.482 | 1.576 | 7 | 1.941 | 0.884 | 1.967 | 0.562 | 1.794 | 0.900 | 1.657 | 0.546 | 1.725 | 0.642 | 1.491 | 0.607 | 8 | 1.943 | 0.103 | 1.971 | 0.407 | 1.756 | —— | 1.661 | 0.241 | 1.733 | 0.464 | 1.502 | 0.738 |
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