| 摘要 |
<p>The present invention relates to methods for suppressing extraction of cobalt and selectively recovering manganese, characterized by acquisition of organic phase including manganese by performing solvent extraction from an aqueous solution including manganese using a mixed extraction agent including 2-ethyl hexyl phosphonic acid and alkyl monocarboxylic acid. According to the present invention, manganese can be selectively recovered from cobalt and nickel by extraction suppressing effects of valuable metals in a specific pH range without changing the extraction order of manganese, cobalt, and nickel. Additionally, provided is the mixed extraction agent used in a solvent extraction method capable of selectively recovering manganese in a range of pH 4-5.</p> |
