Method for the purification of radium from different sources
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United States of America Patent
Stats
-
May 6, 2014
Grant Date -
Oct 4, 2012
app pub date -
Apr 6, 2012
filing date -
Sep 8, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention is directed to a method for the purification of Radium, in particular 226Ra, for target preparation for an essentially pure 225Ac production from available radioactive sources, using an extraction chromatography in order to separate chemically similar elements such as Ba, Sr, and Pb from the desired Ra; wherein said extraction chromatography has an extractant system on the basis of a crown ether. The invention is related to a method for recycling of 226Ra, for target preparation for 225Ac production from radium sources irradiated with accelerated protons (p,2n), after separation of the produced 225Ac. In this method a combination of the above extraction chromatography and a cation exchange chromatography is used. The obtained 226Ra is essentially free of the following chemical contaminants consisting of Ag, Al, As, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, K, Li, Mg, Mn, Na, Ni, Pb, Sr, V, Zn, and Ba.
First Claim
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Family
International Classification(s)
- 2012 Application Filing Year
- C01F Class
- 146 Applications Filed
- 115 Patents Issued To-Date
- 78.77 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- C01F Class
- 17.24 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 6, 2025 |
