Methods for gas-phase thermochromatographic separations of fission and activation products
US9951398B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2015 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Nov 7, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods are provided for characterizing samples containing chemical elements such as rare earth elements, actinides, and heavy transition metals by treating the samples to form volatile complexes of the elements (e.g., β-diketonate complexes or other organic ligand complexes of the elements) and then analyzing the complexes, for example, via gas-phase thermochromatography. Also provided are methods for separating and/or recovering such chemical elements. The methods produce less waste and can be performed more rapidly than conventional liquid extraction methods and can provide separated elements of high purity (e.g., 99.9999% purity).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.