| 摘要 |
<p>The purpose of the present invention is to provide a method for separating and refining scandium, the method being capable of improving stripping and efficiently separating and refining scandium from a scandium-containing solution while the separability (selectivity) of scandium and impurity elements from a scandium-containing aqueous solution is maintained. In this method, scandium is extracted in an organic solvent obtained by: mixing a scandium-containing aqueous solution and a trioctylphosphine oxide-containing organic solvent; mixing the organic solvent and a stripping starting liquid containing one or more of water, hydrochloric acid, sulfuric acid, and oxalic acid; and stripping scandium from the organic solvent.</p> |
