Extraction of scandium values from copper leach solutions
AssigneeScandium International Mining Corporation
InventorWillem P.C. Duyvesteyn
Life of this patent
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Abstract
A method is provided for extracting scandium values from an ore feedstock. The method includes providing a feedstock of a copper ore which contains scandium values; extracting scandium values from the ore with a leaching solution, thereby obtaining a pregnant leachate; contacting the pregnant leachate with an ion exchange resin, thereby extracting scandium values from the pregnant leachate and forming a loaded extractant; stripping the scandium values from the loaded extractant with a stripping solution, thereby forming a loaded stripping solution; and precipitating the scandium values from the loaded stripping solution as a scandium-containing precipitate.
Claims30
A method for extracting scandium values from an ore feedstock, comprising:
- providing a feedstock of a copper ore which contains scandium values;
- extracting scandium values from the ore with a leaching solution, thereby obtaining a pregnant leachate;
- contacting the pregnant leachate with an ion exchange resin, thereby extracting scandium values from the pregnant leachate and forming a loaded extractant;
- stripping the scandium values from the loaded extractant with a stripping solution, thereby forming a loaded stripping solution;
- and
- precipitating the scandium values from the loaded stripping solution as a scandium-containing precipitate.
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The method of claim 48, wherein the organic solvent includes a diluent and a phase modifier.
Dependencies are inferred from the claim text.