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Found results for
 patents
1.
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RHENIUM REMEDIATION IN THE PREPARATION OF MOLYBDENUM-99
| Document Number |
03207496 |
| Status |
Pending |
| Filing Date |
2022-01-10 |
| Open to Public Date |
2022-07-14 |
| Owner |
OUTPUT ENABLERS LLC, D/B/A CALCHEMIST (USA)
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| Inventor |
Schrier, Marc
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Abstract
A method of preparing remediated MoO3 from naturally-occurring molybdenum, or molybdenum that is enriched in one, the other or both of Mo-98 and Mo-100 isotopes from a particulate rhenium-containing MoO3 matrix that contains one, the other or both of those isotopes is disclosed as is the product remediated MoO3 that contains less than about 1000 ppt rhenium, In accordance with the invention, particulate rhenium- containing MoO3 matrix is heated in the presence of an oxygen-containing gaseous stream to a temperature of greater than about 300 °C and less than about 800 °C. The temperature and oxidative sparging are maintained for a time sufficient to assure that rhenium has been oxidized to rhenium (VII), diffuses to form the dimer (Re2O7), and is then vaporizingly removed as Re2O7, while retaining the remediated MoO3.
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2.
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Rhenium Remediation in the Preparation of Molybdenum-99
| Application Number |
17572087 |
| Status |
Pending |
| Filing Date |
2022-01-10 |
| First Publication Date |
2022-07-14 |
| Owner |
Output Enablers LLC, d/b/a Calchemist (USA)
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| Inventor |
Schrier, Marc
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Abstract
A method of preparing remediated MoO3 from naturally-occurring molybdenum, or molybdenum that is enriched in one, the other or both of Mo-98 and Mo-100 isotopes from a particulate rhenium-containing MoO3 matrix that contains one, the other or both of those isotopes is disclosed as is the product remediated MoO3 that contains less than about 1000 ppt rhenium. In accordance with the invention, particulate rhenium-containing MoO3 matrix is heated in the presence of an oxygen-containing gaseous stream to a temperature of greater than about 300° C. and less than about 800° C. The temperature and oxidative sparging are maintained for a time sufficient to assure that rhenium has been oxidized to rhenium(VII), diffuses to form the dimer (Re2O7), and is then vaporizingly removed as Re2O7, while retaining the remediated MoO3.
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3.
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RHENIUM REMEDIATION IN THE PREPARATION OF MOLYBDENUM-99
| Application Number |
US2022011822 |
| Publication Number |
2022/150705 |
| Status |
In Force |
| Filing Date |
2022-01-10 |
| Publication Date |
2022-07-14 |
| Owner |
OUTPUT ENABLERS LLC, d/b/a CALCHEMIST (USA)
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| Inventor |
Schrier, Marc
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