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US 10,087,503 B2Granted
Method for separation of chemically pure Os from metal mixtures
AssigneeThe Curators of the University of Missouri
InventorsHendrik P. Engelbrecht, Cathy S. Cutler, Leonard Manson, Stacy Lynn Wilder
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Abstract
A method for separating an amount of osmium from a mixture containing the osmium and at least one other additional metal is provided. In particular, method for forming and trapping OsO4 to separate the osmium from a mixture containing the osmium and at least one other additional metal is provided.
Claims3
A method of producing an amount of chemically pure Re-186 isotope, comprising:
- irradiating a metal target comprising an amount of isotopically enriched osmium isotope consisting of Os-189, Os-192, or a combination thereof in a thermal proton flux to form a mixture comprising at least one osmium isotope and at least one additional metal comprising the Re-186 isotope;
- contacting the mixture with an oxidizing solution to form a volatile OsO4 vapor comprising the at least one osmium isotope;
- distilling the OsO4 vapor from the oxidizing solution to form a second solution comprising the Re-186 isotope dissolved in the oxidizing solution;
- and
- separating the Re-186 isotope from the second solution.
2 more elements
Dependencies are inferred from the claim text.