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The TRansUranium EXtraction (TRUEX) process: A vital tool for disposal of US defense nuclear waste

Conference ·
OSTI ID:6650596
;

The TRUEX (TRansUranium EXtraction) process is a generic actinide extraction/recovery process for the removal of all actinides from acidic nitrate and chloride nuclear waste solutions. Because of its high efficiency and flexibility and its compatibility with existing process facilities, TRUEX has now become a vital tool for the disposal of certain US defense nuclear waste. The development of TRUEX is closely coupled to the development of bifunctional extractants belonging to the carbamoylphosphoryl class and CMPO in particular. A brief review of the development of CMPO and its relationship to other bifunctional and monofunctional extractants is presented. The effect of TBP on CMPO, the selectivity of CMPO for actinides extracted from acidic nitrate media, the influence of diluents on CMPO behavior and 3rd phase formation, and the radiolysis/hydrolysis of CMPO and subsequent solvent cleanup will be highlighted. Application of TRUEX in the chemical pretreatment of specific nuclear waste streams and a summary of the current status of development and deployment of TRUEX is presented. 15 refs., 10 figs., 3 tabs.

Research Organization:
Argonne National Lab., IL (USA)
Sponsoring Organization:
DOE/ER
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
6650596
Report Number(s):
CONF-900579-2; ON: DE90017802
Country of Publication:
United States
Language:
English

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Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
ACTINIDE COMPOUNDS
ACTINIDES
AMERICIUM COMPOUNDS
AMERICIUM NITRATES
CARBOXYLIC ACIDS
CHEMICAL PROPERTIES
DICARBOXYLIC ACIDS
ELEMENTS
EXTRACTION
MANAGEMENT
MATERIALS RECOVERY
METALS
NEPTUNIUM
NITRATES
NITROGEN COMPOUNDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
OXALIC ACID
OXYGEN COMPOUNDS
PROCESSING
RADIOACTIVE WASTE PROCESSING
RECOVERY
SEPARATION PROCESSES
SOLUBILITY
SOLVENT EXTRACTION
TRANSPLUTONIUM COMPOUNDS
TRANSURANIUM COMPOUNDS
TRANSURANIUM ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING