Use of novel compounds for selectively extracting rare earths from aqueous solutions including phosphoric acid and associated extraction method
US10450629B2 · kind B2 · utility
1Cited by
1References
18Claims
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Key dates
| Filing date | May 3, 2016 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | May 3, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to the use, as an extraction agent for extracting at least one rare earth from an aqueous phase including phosphoric acid, of at least one compound of the following general formula (I): where The invention also relates to a method for recovering at least one rare earth using said compound, as well as to specific compounds as such.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.