| 简介 |
(57) Abstract : The present disclosure relates to processes for recovering The processes can comprise leaching the aluminum-bearing material aluminum ion, at least one iron ion, at least one rare earth element, cesses can also comprise substantially selectively removing at least one from the leachate and optionally obtaining a precipitate. The processes I BuLk REE Removal I -(107}--M (Precipitation / M_; ] S/LSeparation REE Precipitation NEE Re-leaching S/L Separation Primary Recovery NEE ) (Solvent Extraction) Raffinate of LRE 4A (ce, Nd, Eu, Pr) rare earth elements from an aluminum-bearing material. with an acid so as to obtain a leachate comprising at least one and a solid, and separating the leachate from the solid. The pro - of the at least one aluminum ion and the at least one iron ion can also comprise substantially selectively removing the at |
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