New high-level waste management technology for IFR pyroprocessing wastes

Conference · Wed Sep 01 04:00:00 EDT 1993

OSTI ID:10180840

Ackerman, J P; Johnson, T R

The pyrochemical electrorefining process for recovery of actinides in spent fuel from the Integral Fast Reactor accumulates fission product wastes as chlorides dissolved in molten LiCI-KCI and as metals, some of which are in molten cadmium. Pyrochemical processes are being developed to recover uranium and transuranium elements for return to the reactor, and to separate and immobilize fission products in suitable waste forms. Solvent cadmium is recycled within the process. Electrolyte salt is treated in a series of salt/cadmium extraction steps; it is also returned to the process. Salt-borne fission products are concentrated on a zeolite bed that is converted to a stable, leach-resistant mineral. Rare earth fission products from the salt, noble metal fission products, and cladding hulls are dispersed in a metal matrix.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10180840
• Report Number(s): ANL/CMT/CP--78666; CONF-930913--31; ON: DE93019769
• Country of Publication: United States
• Language: English

Related Subjects

050800
052001
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
FISSION PRODUCTS
HIGH-LEVEL RADIOACTIVE WASTES
IFR REACTOR
PYROLYSIS
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTE PROCESSING
REPROCESSING
SALTS
SEPARATION PROCESSES
SPENT FUELS
SPENT FUELS REPROCESSING
WASTE PROCESSING