Using solvent extraction to process nitrate anion exchange column effluents

Technical Report · Thu Oct 01 00:00:00 EDT 1987

DOI:https://doi.org/10.2172/5976696· OSTI ID:5976696

Yarbro, S L

Octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO), a new organophosphorous extractant, and a new centrifugal mixer-settler both recently developed at Argonne were evaluated for their potential use in the recovery of actinides from nitrate anion exchange column effluents. The performance of the extractant was evaluated by measuring the extraction coefficient values as a function of acid and salt concentration. Additional performance parameters include extraction coefficient behavior as a function of the total metal concentration in the organic phase, and comparison of different stripping and organic scrubbing techniques. A simulated effluent stream was used to evaluate the performance of the centrifugal mixer-settlers by comparing experimental and calculated interstage concentration profiles. Both the CMPO extractant and the centrifugal mixer-settlers have potential for processing nitrate column effluents, particularly if the stripping behavior can be improved. Details of the proposed process are presented in the flowsheet and contactor design analyses.

• Research Organization: Los Alamos National Lab., NM (USA)
• Sponsoring Organization: Not Available; USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5976696
• Report Number(s): LA-11007-T; ON: DE88002175
• Country of Publication: United States
• Language: English

Related Subjects

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ACTINIDES
CENTRIFUGES
CHEMICAL EFFLUENTS
CONCENTRATORS
DIAGRAMS
ELEMENTS
EXTRACTION APPARATUSES
EXTRACTION COLUMNS
FLOWSHEETS
ION EXCHANGE
LIQUID WASTES
METALS
MIXER-SETTLERS
NITRATES
NITROGEN COMPOUNDS
Nuclear Criticality Safety Program (NCSP)
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANIC SOLVENTS
OXYGEN COMPOUNDS
PERFORMANCE
RECOVERY
SEPARATION EQUIPMENT
SOLVENT PROPERTIES
SOLVENTS
WASTES