Separation of metal ions by liquid-liquid extraction
AssigneesThe Regents of the University of California, Fred Hutchinson Cancer Research Center
InventorsRebecca J. ABERGEL, Gauthier J.P. DEBLONDE, Abel RICANO, Roland K. Strong
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Abstract
Provided herein are separation processes for metal ions present in aqueous solutions based on methods involving liquid-liquid extraction. The separation process involves a chelator that can selectively bind to at least one of the metals at a relatively low pH. This can be used, for example, for recovery and purification of actinides from lanthanides, separation of metal ions based on their valence, and separation of metal ions based on the pH of the extraction conditions.
Claims24
1-2. (canceled)
A method of preparing a medical isotope, the method comprising:
- obtaining a metallic precursor dissolved under an acidic condition, wherein the metallic precursor comprises a medical isotope;
- contacting the dissolved metallic precursor with an octadentate ligand and an organic phase to generate a mixture;
- and
- separating the medical isotope from one or more metal ions in the dissolved metallic precursor based on an interaction between the octadentate ligand and the medical isotope.
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Dependencies are inferred from the claim text.