Compounds with phosphine oxide and amine functions, useful as uranium (VI) ligands, and uses thereof, in particular for extracting uranium(VI) from aqueous solutions of sulphuric acid
US10183959B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Apr 1, 2016 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Apr 1, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to compounds which correspond to the general formula (I) below: The invention also relates to the uses of these compounds as uranium(VI) ligands, in particular for extracting uranium(VI) from an aqueous solution of sulphuric acid, and also to a method that makes it possible to recover the uranium(VI) present in an aqueous solution of sulphuric acid resulting from the attack of a uranium ore by sulphuric acid and using said the compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.