| Reagent, g/t | ||||
RGHR | SCVR-1 | SCVR-2 | SCVR-3 | SCVR-4 | |
Aero 6493 | 732 | 537 | 244 | 341 | 341 |
Na-silicate | 675 | 289 | 289 | 96 | 675 |
CMC | 341 | 146 | 98 | 98 | 49 |