V5 and V10 Contactor Testing with the Next Generation (CSSX) Solvent for the Savannah River Site Integrated Salt Disposition Process

Technical Report · Tue Jan 17 00:00:00 EST 2012

DOI:https://doi.org/10.2172/1033591· OSTI ID:1033591

Restivo, M. L. ^[1]; Peters, T. B. ^[1]; Pierce, R. A. ^[1]; Fondeur, F. F. ^[1]; Steeper, T. J. ^[1]; Williams, M. R. ^[1]; Giddings, B. J. ^[1]; Hickman, B. A. ^[1]; Fink, S. D. ^[1]

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1. Savannah River National Laboratory (SRNL), Aiken, SC (United States)

A solvent extraction system for removal of cesium (Cs) from alkaline solutions was developed utilizing a novel solvent invented at the Oak Ridge National Laboratory (ORNL). This solvent consists of a calix[4]arene-crown-6 extractant dissolved in an inert hydrocarbon matrix. A Modifier is added to the solvent to enhance the extraction power of the calixarene and to prevent the formation of a third phase. An additional additive, called a suppressor, is used to improve stripping performance. The process that deploys this solvent system is known as Caustic Side Solvent Extraction (CSSX). The solvent system has been deployed at the Savannah River Site (SRS) in the Modular CSSX Unit (MCU) since 2008.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC09-08SR22470
• OSTI ID: 1033591
• Report Number(s): SRNL--STI-2011-00695
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BORIC ACID
CALIXARENES
CESIUM
CONFIGURATION
CSSX
DECONTAMINATION
ENTRAINMENT
EXTRACTION APPARATUSES
FLOW RATE
HYDROCARBONS
MASS DISTRIBUTION
MASS TRANSFER
PARTICLE SIZE
PHYSICAL PROPERTIES
REMOVAL
SAMPLING
SOLUBILITY
SOLVENT EXTRACTION
SOLVENTS
SPECTROSCOPY
TESTING
WASTE PROCESSING
WASTES
cesium
solvent extraction