Published July 19, 1979
| Version v1
Patent
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Method to produce high-purity, radioactive molybdenum 99 fission product
Description
The Mo 99 is recovered from irradiated U which is present in an acid washing solution. Following the addition of a sodium sulphite solution, the Mo is precipitated by adding α-benzoinoxine and NaOH. The precipitation can be repeated several tines once the precipitate has been dissolved in an aqueous solution. In order to purify the Mo, the Mo 99 solution is brought into contact with silver-coated activated char coal, activated charcoal, and an inorganic ion exchanger. The Mo 99 concentration is above 1000 millicurie/ml. (DG)
Availability note (English)
MF available from INIS under the Report Number.Abstract (German)
Das Mo-99 wird aus bestrahltem U gewonnen, welches in einer sauren Waschloesung vorliegt. Nach Zugabe einer Natriumsulfitloesung wird das Mo durch Zugabe von α-Benzoinoxin und NaOH gefaellt. Die Faellung kann mwhrmals wiederholt werden, nachdem die Faellsubstanz in einer waessrigen Loesung aufgeloest wurde. Zur Reinigung des Mo, wird die Mo-99-Loesung mit silberbeschichteter Aktivkohle, Aktivkohle und einem anorganischen Ionenaustauscher kotaktiert, Die Mo-99-Konzentration betraegt mehr als 1000 Millicurie/ml. (DG)Files
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Additional details
Additional titles
- Original title (German)
- Verfahren zur Herstellung von hochreinem, radioaktivem Molybdaen-99-Spaltprodukt
Publishing Information
- Imprint Pagination
- 7 p.
- IPC:
- Int. Cl. C01G 39/00.
- IPC
- Int. Cl. C01G 39/00.
- Patent number
- DE patent document 2231976/B/
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 11543355
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S62: RADIOLOGY AND NUCLEAR MEDICINE;
- Descriptors DEI
- CARRIER-FREE ISOTOPES; DIAGNOSTIC TECHNIQUES; IMPURITIES; ISOMERIC NUCLEI; ISOTOPE PRODUCTION; MOLYBDENUM 99; NUCLEAR MEDICINE; PURIFICATION; RADIOISOTOPE GENERATORS; TECHNETIUM 99
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DAYS LIVING RADIOISOTOPES; EVEN-ODD NUCLEI; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MEDICINE; MOLYBDENUM ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; RADIOISOTOPES; TECHNETIUM ISOTOPES; YEARS LIVING RADIOISOTOPES