Method of inhibiting extractant degradation by controlling extractive capacity and preventing direct degradation
AssigneeKorea Resources Corporation
InventorsJeon Woong An, Youn Kyu Yi, Gwang Seop Lee, Young Hun Kim
Life of this patent
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Abstract
Provided is a method for inhibiting extractant degradation comprising preparing step, extracting step and scrubbing step, the method including: (a) the preparing step of a DSX solvent by adjusting the extractant concentration of the DSX solvent to a specific range; (b) the extracting step of metal included in the feed solution by adjusting the ratio of the organic (solvent) and an aqueous (solution) as a feed solution; (c) the scrubbing step of adjusting the zinc concentration of the solution using zinc sulfate; and (d) stripping step.
Claims6
A method for inhibiting extractant degradation, the method including:
- (a) adjusting the concentration of extractant in a synergistic solvent extraction solvent;
- (b) mixing a feed solution and the synergistic solvent to extract metal from the feed solution into the synergistic solvent extraction solvent by adjusting the ratio of the synergistic solvent extraction solvent to the feed solution and separating the feed solution from which metal has been extracted and the synergistic solvent extraction solvent including extracted metal;
- (c) adding zinc sulfate to the feed solution from which metal has been extracted to adjust the concentration of zinc in the feed solution from which metal has been extracted;
- and
- (d) stripping extracted metal from the synergistic solvent extraction solvent.
Dependencies are inferred from the claim text.