Total REE recovered (kg REE/ton mining tail 1) | ||
Test | HCl | HNO3 |
1 | 0.205 | 0.149 |
A | 0.214 | 0.147 |
B | 0.253 | 0.160 |
AB | 0.262 | 0.171 |
C | 0.269 | 0.208 |
AC | 0.295 | 0.189 |
BC | 0.311 | 0.210 |
ABC | 0.355 | 0.224 |