Method for selectively recovering americium from a nitric aqueous phase
US8753420B2 · kind B2 · utility
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Key dates
| Filing date | Jul 26, 2010 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jun 4, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/50
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method with which americium may be selectively recovered from a nitric aqueous phase containing americium, curium and fission products including lanthanides and yttrium, but which is free of uranium, plutonium and neptunium or which only contains these three last elements in trace amounts. The method is applicable for treatment and recycling of irradiated nuclear fuels, in particular for removing americium from raffinates stemming from methods for extracting and purifying uranium and plutonium such as the PUREX and COEX™ methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.