Systems, apparatus and methods for separating actinium, radium, and thorium
US11798700B2 · kind B2 · utility
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33Claims
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Key dates
| Filing date | Mar 26, 2019 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Sep 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21G2001/0094
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of separating actinium and/or radium from proton-irradiated thorium metal. The thorium metal is irradiated to produce isotopes including thorium, actinium and/or radium. The resultant product is dissolved in solution and a selective precipitant is used to precipitate a bulk portion of the thorium. The precipitated thorium can be recovered. Chromatography is carried out on the remaining solution to remove residual thorium and to separate the actinium from the radium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.