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US 11,203,531 B2Granted
Method for inhibiting extractant degradation of DSX process through manganese extraction control
AssigneeKorea Resources Corporation
InventorsJeon Woong An, Youn Kyu Yi, Seung Ho Lee
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Abstract
Provided is a method for inhibiting extractant degradation in the DSX process through the manganese extraction control, the method comprising: (a) stirring DSX solvent and DSX feed solution, which is a solution containing a valuable metal from which iron has been removed in an agitator, in which soda ash (Na2CO3) is further added to maintain a constant pH; and (b) scrubbing the manganese from the DSX solvent, extracted in step (a).
Claims7
A method for inhibiting extractant degradation in a DSX synergistic solvent extraction process, the method comprising:
- (a) stirring a synergistic solvent extraction solvent and a synergistic solvent extraction feed solution, which is a solution containing a valuable metal from which iron has been removed, and adding soda ash to maintain a constant pH, wherein manganese is extracted into the synergistic solvent extraction solvent;
- and
- (b) scrubbing the manganese from the synergistic solvent extraction solvent after step (a).
Dependencies are inferred from the claim text.