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Multiple regression analysis between zinc leaching efficiency and mineral composition on sampling time
| Time | Formula | R2 | p |
|---|---|---|---|
| Day 6 | y = 2.800 + 0.816x1 + 721.911x2 − 741.258x3 | 0.443 | 0.006 |
| Day 12 | – | 0.147 | > 0.1 |
| Day 21 | – | 0.038 | > 0.1 |
| Day 30 | y = 62.266 + 0.479x1 + 462.157x2 − 470.054x3 | 0.512 | 0.002 |
Zinc leaching efficiency was indicated by “y” (unit: %), temperature was indicated by “x1” (unit: °C) and mineral composition was indicated by “x2” (DCA1) and “x3” (DCA2)
