Published March 15, 1979
| Version v1
Patent
Open
Method to separate off hydrogen fluoride from a uranium hexafluoride-hydrogen fluoride mixture
Description
There have been sofar difficulties involved in separating off HF when purifying UF6. According to the invention, this can be achieved without great expenditure if one adds a perfluorated amine or derivative of it to the UF6-HF mixture. The UF6 can be separated by simple distillation or sublimation from the hardly-volatile formed tri-(perfluoro-butyl) ammonium fluoride. The adduct formed can be easily split again with NaOH so that the amine can be recycled without loss. (UWI)
Availability note (English)
MF available from INIS under the Report Number.Abstract (German)
Bei der Reinigung von UF6 hat man bisher Schwierigkeit, HF abzutrennen. Erfindungsgemaess laesst sich dies aber ohne grossen Aufwand erreichen, wenn man dem UF6-HF-Gemisch ein perfluoriertes Amin bzw. ein Derivat davon zusetzt. Von dem sich dabei bildenden schwerfluechtigen Tri(perfluorbutyl)-ammoniumfluorid laesst sich das UF6 durch einfache Destillation oder Sublimation abtrennen. Das gebildete Addukt laesst sich leicht mit NaOH wieder aufspalten, sodass das Amin ohne Verluste wieder einsetzbar ist. (UWI)Files
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Additional details
Additional titles
- Original title (German)
- Verfahren zum Abtrennen von Fluorwasserstoff aus einem Uranhexafluorid-Fluorwasserstoff-Gemisch
Publishing Information
- Imprint Pagination
- 2 p.
- IPC:
- Int. Cl. C01G 43/06.
- IPC
- Int. Cl. C01G 43/06.
- Patent number
- DE patent document 2231893/C/
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 10486824
- Subject category
- S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
- Descriptors DEI
- ADDITIVES; AMINES; HYDROFLUORIC ACID; ORGANIC FLUORINE COMPOUNDS; PURIFICATION; SEPARATION PROCESSES; URANIUM HEXAFLUORIDE
- Descriptors DEC
- ACTINIDE COMPOUNDS; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; URANIUM COMPOUNDS; URANIUM FLUORIDES