CONTRIBUTING TO THE DISCUSSIONS ON THE FUNDAMENTAL ASPECTS AND COMPLEXITIES OF TALSPEAK CHEMISTRY

Conference · Sat Oct 01 04:00:00 EDT 2011

OSTI ID:1042343

Zalupski, Peter R; Martin, Leigh R

When liquid-liquid distribution of lanthanides was monitored at Talspeak-related conditions a characteristic drop in the extraction efficiency was observed at high lactate concentrations. The lactate dependency trend also appears to be directly affected by the increasing complexity of the non-aqueous environment. Some considerations of the non-ideal solution behavior in aqueous and organic environment are presented here in an attempt to explain the observed metal partitioning trends. While the mechanism of metal ion phase transfer appears to adhere to the conventional thermodynamic struggle between HDEHP and DTPA, the diminished metal distribution and suppressed slopes for the extractant dependencies suggest further build-up in the complexity of the non-aqueous environment in Talspeak systems.

• Research Organization: Idaho National Laboratory (INL)
• Sponsoring Organization: DOE - NE
• DOE Contract Number: AC07-05ID14517
• OSTI ID: 1042343
• Report Number(s): INL/CON-10-20415
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
AUGMENTATION
DISTRIBUTION
DTPA
EFFICIENCY
EXTRACTION
HDEHP
IONS
LACTATES
LIQUIDS
MEETINGS
METALS
RARE EARTHS
SOLUTIONS
SOLVENT EXTRACTION
THERMODYNAMICS
Talspeak process
aqueous actinide partitioning
nuclear fuel cycle
solvent extraction
thermodynamics