Table 2 Laboratory test conditions.
From: Thiosulfate leaching in carbonaceous gold-bearing ores in Ethiopia
No | Experimental conditions | First run | Second run |
|---|---|---|---|
1 | Head grade | 1.25 g/t | 1.25 g/t |
2 | Sodium cyanide (NaCN) strength | 0.5 g/l | 0.25 g/l |
3 | Sodium thiosulfate (Na2S2O3) strength | 9 g/l | 8 g/l |
4 | Ammonia (NH3) | 13.6 g/l | 13.6 g/l |
5 | Copper sulfate (CuSO4) | 0.8 g/l | 0.8 g/l |
6 | Sample size | 2 kg | 2 kg |
7 | Pulp density | 50% Solid | 50% Solid |
8 | pH | 10.0 | 11.5 |
9 | Leaching time | 48 h | 48 h |
10 | Temperature | 20–25 °C (Room temp.) | 20–25 °C (Room temp.) |
