Purification process for 153Gd produced in natural europium targets
US8425654B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Aug 18, 2011 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Aug 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21G2001/0094
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An alteration of the traditional zinc/zinc-amalgam reduction procedure which eliminates both the hazardous mercury and dangerous hydrogen gas generation. In order to avoid the presence of water and hydrated protons in the working solution, which can oxidize Eu2+ and cause hydrogen gas production, a process utilizing methanol as the process solvent is described. While methanol presents some flammability hazard in a radiological hot cell, it can be better managed and is less of a flammability hazard than hydrogen gas generation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.