No. | Acid concentration (gr/l) | Time (minute) | Temperature (Celsius) | Pulp density (gr/l) | Cu recovery (%) |
1 | 40 | 60 | 40 | 100 | 82.74 |
2 | 40 | 90 | 60 | 150 | 62.67 |
3 | 40 | 120 | 80 | 200 | 78.75 |
4 | 80 | 60 | 60 | 200 | 86.96 |
5 | 80 | 90 | 80 | 100 | 92.44 |
6 | 80 | 120 | 40 | 150 | 77.75 |
7 | 120 | 60 | 80 | 150 | 84.10 |
8 | 120 | 90 | 40 | 200 | 81.02 |
9 | 120 | 120 | 60 | 100 | 99.11 |