Method for cleaning bomb-reduced uranium derbies
Patent
·
OSTI ID:5349423
The concentration of carbon in uranium metal ingots induction cast from derbies prepared by the bomb-reduction of uranium tetrafluoride in the presence of magnesium is effectively reduced to less than 100 ppM by removing residual magnesium fluoride from the surface of the derbies prior to casting. This magnesium fluoride is removed from the derbies by immersing them in an alkali metal salt bath which reacts with and decomposes the magnesium fluoride. A water quenching operation followed by a warm nitric acid bath and a water rinse removes the residual salt and reaction products from the derbies.
- DOE Contract Number:
- W-7405-ENG-26
- Assignee:
- TIC; ERA-05-030843; EDB-80-089967
- Patent Number(s):
- None
- OSTI ID:
- 5349423
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ACTINIDES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CARBON
CHEMICAL REACTIONS
CLEANING
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
MAGNESIUM COMPOUNDS
MAGNESIUM FLUORIDES
METALS
NONMETALS
SALTS
URANIUM
360101* -- Metals & Alloys-- Preparation & Fabrication
ACTINIDES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CARBON
CHEMICAL REACTIONS
CLEANING
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
MAGNESIUM COMPOUNDS
MAGNESIUM FLUORIDES
METALS
NONMETALS
SALTS
URANIUM