Open Access
Table 2
Summary of H2O:NH3:H2S experiments performed.
| Dosing ratios | Final ratios (a) | % NH4SH (a) with respect to H2O | Lim. react. | Dep. time (min) | |||||
|---|---|---|---|---|---|---|---|---|---|
| H2O | NH3 | H2S | H2O | NH4SH | NH3 | H2S | |||
| 10 | 2 | 1 | 10 | 1 | 1 | 0 | 10 | H2S | 10, 20, 30, 40, 50 |
| 8 | 2 | 1 | 10 | 8 | 1 | 0 | 12.5 | H2S | 20 |
| 6 | 2 | 1 | 10 | 6 | 1 | 0 | 16.7 | H2S | 20 |
| 5 | 2 | 1 | 5 | 1 | 1 | 0 | 20 | H2S | 20 |
| 12 | 3 | 2 | 12 | 2 | 1 | 0 | 16.7 | H2S | 30 |
| 10 | 3 | 2 | 10 | 2 | 1 | 0 | 20 | H2S | 10, 20, 30, 40, 50 |
| 6 | 3 | 2 | 6 | 2 | 1 | 0 | 33.3 | H2S | 30 |
| 4 | 3 | 2 | 4 | 2 | 1 | 0 | 50 | H2S | 30 |
| 3 | 3 | 2 | 3 | 2 | 1 | 0 | 66.7 | H2S | 30 |
| 8 | 5 | 4 | 8 | 4 | 1 | 0 | 50 | H2S | 10, 20, 30, 40, 50 |
| 5 | 1 | 1 | 5 | 1 | 0 | 0 | 20 | – | 30 |
| 2 | 1 | 1 | 2 | 1 | 0 | 0 | 50 | – | 40 |
| 1 | 1 | 1 | 1 | 1 | 0 | 0 | 100 | – | 40 |
| 10 | 2 | 3 | 10 | 2 | 0 | 1 | 20 | NH3 | 40 |
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