38559-81-8Relevant academic research and scientific papers
Extractant as well as preparation method and application thereof
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Paragraph 0073-0076, (2021/09/15)
The invention relates to the field of separation and enrichment of metals, in particular to an extractant, a preparation method and application thereof. The preparation method comprises the followingsteps that a phenol compound reacts with a halogenated carboxylic acid derivative or halogenated carboxylate in a solvent, then acidifying is carried out, and the phenoxy carboxylic acid extractant issynthesized. The prepared extractant can be used for enriching rare earth in rare earth mineral leachate after being saponified by an alkaline compound; compared with the existing extractant, the extractant has the advantages of being higher in precipitation capacity, high in precipitation efficiency and large in precipitation particles, facilitating the separation of a rare earth extraction complex and a water phase and improving the production efficiency; and moreover, the extractant can further be used for selectively recovering/separating valuable metals from different industries.
