Pyrrhotite excess | pH | Content in solution, g/dm3 | Degree of nickel precipitation, % | Content in precipitate, % | CNi:CFe ratio in the precipitate | ||
Ni | Fe | Ni | Fe | ||||
0.9 | 1.15 | 0.15 | 6.6 | 98.35 | 52.0 | 9.1 | 5.7 |
1.0 | 1.2 | 0.1 | 7.4 | 98.9 | 58.0 | 9.1 | 6.4 |
1.04 | 1.2 | 0.12 | 7.4 | 98.7 | 50.5 | 9.17 | 5.6 |
1.1 | 1.3 | 0.05 | 7.6 | 99.3 | 55.5 | 11.7 | 5.0 |
1.13 | 1.45 | 0.07 | 7.3 | 99.1 | 52.5 | 11.8 | 4.4 |
1.17 | 1.8 | 0.03 | 8.2 | 99.6 | 51.5 | 13.1 | 3.9 |