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At the European Institute for Transuranium Elements, different forms of waste have accumulated over the last 15 years which contain gramme amounts of Am-241, Am-243, Np-237 and Cm-244. In view of the financial value of the minor actinides contained in the waste, equipment has been set up for their recovery. Am-241 is separated from filtrates of MOX fuel fabrication by precipitation, and Np, Am, Cm by HPLC, in water-shielded cells. The recovery of minor actinides in spent testing fuels is being developed. A group separation of actinides and lanthanides by liquid-liquid extraction is foreseen. A comparative study evaluating TRPO vs. CMPO by using high level wastes from LWR reprocessing has been made. In a cooperation with INET, Beijing, two batteries of centrifugal extractors will be set up. In order to improve lanthanide/actinide separation, a laser enhanced extraction technique is being studied.

Additional information

Authors: KOCH L, JRC Karlsruhe (DE)
Bibliographic Reference: Paper presented: NEA Workshop, Mito (JP), Nov. 19-21, 1991
Availability: Text not available
Record Number: 199210720 / Last updated on: 1994-12-02
Original language: en
Available languages: en
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