Method for extracting rare earth elements from rare earth element hyperaccumulator
US11834729B2 · kind B2 · utility
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Key dates
| Filing date | Nov 30, 2022 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Nov 30, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for extracting rare earth elements (REEs) from a REE hyperaccumulator, including: subjecting the REE hyperaccumulator to microwave-assisted digestion to obtain a REE extract; subjecting the REE extract to absorption with a chelating resin and elution to obtain a purified REE solution; and subjecting the purified REE solution to precipitation and calcination to obtain high-purity rare earth compound.
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