| 序号 | A:硫酸浓度(%) | B:反应温度(℃) | C:n(Fe):n(H2SO4) | 响应值:Y结晶回收率(%) | 
| 1 | 18.00 | 65.00 | 0.8:1 | 81.40 | 
| 2 | 20.00 | 50.00 | 0.8:1 | 55.96 | 
| 3 | 18.00 | 80.00 | 0.7:1 | 85.04 | 
| 4 | 18.00 | 65.00 | 0.8:1 | 87.59 | 
| 5 | 18.00 | 50.00 | 0.9:1 | 60.59 | 
| 6 | 16.00 | 65.00 | 0.9:1 | 82.47 | 
| 7 | 16.00 | 50.00 | 0.8:1 | 58.88 | 
| 8 | 20.00 | 65.00 | 0.9:1 | 82.04 | 
| 9 | 20.00 | 80.00 | 0.8:1 | 83.41 | 
| 10 | 18.00 | 50.00 | 0.7:1 | 77.06 | 
| 11 | 20.00 | 65.00 | 0.7:1 | 81.21 | 
| 12 | 18.00 | 65.00 | 0.8:1 | 87.42 | 
| 13 | 18.00 | 65.00 | 0.8:1 | 85.91 | 
| 14 | 18.00 | 80.00 | 0.9:1 | 83.22 | 
| 15 | 16.00 | 80.00 | 0.8:1 | 77.27 | 
| 16 | 16.00 | 65.00 | 0.7:1 | 78.24 | 
| 17 | 18.00 | 65.00 | 0.8:1 | 81.73 |