Beneficiation of rare earth elements bearing ancylite
US10618058B2 · kind B2 · utility
2Cited by
3References
17Claims
0Family size
Inventors
Key dates
| Filing date | Aug 1, 2016 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Nov 8, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed herein are methods and systems for recovery of ancylite, a rare earth mineral comprising strontium carbonate, from rare earth ore. In many embodiments, the disclosed methods and systems provide for recovery of greater than 50% of the ancylite from an ancylite containing ore. In many embodiments, the ore is subjected to flotation in the presence of an acid, for example a hydroxamic acid, such as octanohydroxamic acid. The ore may also be subjected to magnetic separation, for example wet high intensity magnetic separation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.