Reprocessing of unexposed TRIGA fuel U Zr Hx or fabrication waste according to the NUKEM process patent no. 30 21 942.2
Creators
Description
With the NUKEM process, the uranium-zirconium waste is put in portions into a pre-heated 10 - 20 % fluorhydric acid. The hydrogen liberated during dissolving has a reducing effect, permitting the precipitation of uranium tetrafluoride. The excessively prevailing zirconium is kept in the dissolved state and after a certain holding time of the suspension at 80-90 deg. C a product is obtained that can be well filtered. After washing several times with water containing fluorhydric acid, a uranium tetrafluoride with approx. 400 ppm Zr is obtained. The filtrate contains less than 20 mg U/l. The advantages and disadvantages of the process are discussed. Since 1974, U Zr Hx waste with various U-235 contents and U to ZrH ratios have been successfully reprocessed according to the NUKEM process
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Additional details
Publishing Information
- Imprint Title
- 6. European conference of TRIGA reactor users. Conference papers
- Imprint Pagination
- 302 p.
- Journal Page Range
- p. 1.1-1.2
- Report number
- INIS-DE--09N0006
Conference
- Title
- 6. European conference of TRIGA reactor users
- Dates
- 16-18 Sep 1980
- Place
- Mainz (Germany)
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40082793
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- FABRICATION; HYDROGEN; MAGNESIUM 20; NUCLEAR FUELS; PATENTS; REPROCESSING; URANIUM; URANIUM 235; URANIUM TETRAFLUORIDE; WASTES; ZIRCONIUM
- Descriptors DEC
- ACTINIDE COMPOUNDS; ACTINIDE NUCLEI; ACTINIDES; ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; DOCUMENT TYPES; ELEMENTS; ENERGY SOURCES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FLUORIDES; FLUORINE COMPOUNDS; FUELS; HALIDES; HALOGEN COMPOUNDS; HEAVY NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; MAGNESIUM ISOTOPES; MATERIALS; METALS; MILLISECONDS LIVING RADIOISOTOPES; MINUTES LIVING RADIOISOTOPES; NONMETALS; NUCLEI; RADIOISOTOPES; REACTOR MATERIALS; SEPARATION PROCESSES; SPONTANEOUS FISSION RADIOISOTOPES; TRANSITION ELEMENTS; URANIUM COMPOUNDS; URANIUM FLUORIDES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES
Optional Information
- Secondary number(s)
- TOC--13