铁粉用量 | 2a收率(%) | 2b收率(%) | 2c收率(%) |
2.0 eq | 84.23 | 82.39 | 87.94 |
2.5 eq | 88.79 | 86.50 | 93.62 |
3.0 eq | 87.04 | 84.27 | 90.12 |
3.5 eq | 85.23 | 84.31 | 90.23 |