Beneficiation of rare earth elements bearing ancylite
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United States of America Patent
Stats
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Apr 14, 2020
Grant Date -
Feb 2, 2017
app pub date -
Aug 1, 2016
filing date -
Jul 31, 2015
priority date (Note) -
In Force
status (Latency Note)
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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.
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International Classification(s)
- 2016 Application Filing Year
- B03C Class
- 268 Applications Filed
- 189 Patents Issued To-Date
- 70.53 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- B03C Class
- 39.31 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 14, 2027 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 14, 2031 |
