| 摘要 |
<p>Process for digesting an ore containing rare earths. This process consists in a sulphuric digestion of an ore in the reactor 1 followed by taking up with a solution of calcium nitrate in 3 and, after removal of the insolubles in 5, recovery of the rare earths by a liquid/liquid extraction process in the batteries 6a, 6b. <IMAGE></p> |
