Removal of fluoride impurities from UF/sub 6/ gas
A method of purifying a UF/sub 6/ gas stream containing one or more metal fluoride impurities composed of a transuranic metal, transition metal or mixtures thereof, is carried out by contacting the gas stream with a bed of UF/sub 5/ in a reaction vessel under conditions where at least one impurity reacts with the UF/sub 5/ to form a nongaseous product and a treated gas stream, and removing the treated gas stream from contact with the bed. The nongaseous products are subsequently removed in a reaction with an active fluorine affording agent to form a gaseous impurity which is removed from the reaction vessel. The bed of UF/sub 5/ is formed by the reduction of UF/sub 6/ in the presence of UV light. One embodiment of the reaction vessel includes a plurality of UV light sources as tubes on which UF/sub 5/ is formed.
- Assignee:
- Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4555318
- Application Number:
- TRN: 86-018727
- OSTI ID:
- 5835132
- Resource Relation:
- Patent File Date: Filed date 6 Jan 1984; Other Information: PAT-APPL-568769
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
FLUORIDES
REMOVAL
URANIUM HEXAFLUORIDE
PURIFICATION
FLUORINE
IMPURITIES
ULTRAVIOLET RADIATION
ACTINIDE COMPOUNDS
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
NONMETALS
RADIATIONS
URANIUM COMPOUNDS
URANIUM FLUORIDES
050400* - Nuclear Fuels- Feed Processing