THE PARTITION OF URANIUM(VI) BETWEEN TRIBUTYL PHOSPHATE AND BASIC ALUMINUM NITRATE SOLUTIONS

Technical Report · Fri Dec 12 04:00:00 EST 1958

OSTI ID:4294621

Codding, Jr, J W

The extraction coefficients (organic/aqueous) for tracer uranyl nitrate between various solutions of basic aluminum nitrate ( DIBAN'') and 5 per cent TBP have been investigated, and the data are presented and correlated. A correction to the extraction data for uranyl hydrolysis and nitrate complexing is included. Through the application of activity coefficients a system of correlation is developed which brings the data into line with the generally accepted mass action law for the extraction of the species UO/sub 2/(NO/sub 3/)/ sub 2/- 2TBP. The thermodynamic equilibrium constant for this extraction system is evaluated as K/sub E/= 50.8 M/sub TBP//sup -2m/sub NO3//sup -2, with the activity coefficient vs. ionic strength relationship appearing in good agreement with that of similar solvent extraction systems. A method is outlined by which the activity coefficient values can be used to extrapolate uranium distribution data to provide X-Y diagrams for process design in the acid-deficient aluminum nitrate--TBP solvent extraction system. (auth)

• Research Organization: Phillips Petroleum Co. Atomic Energy Div., Idaho Falls, Idaho
• DOE Contract Number: AT(10-1)-205
• NSA Number: NSA-13-005279
• OSTI ID: 4294621
• Report Number(s): IDO-14454
• Country of Publication: United States
• Language: English

Related Subjects

ALUMINUM NITRATES
BINDING ENERGY
BUTYL PHOSPHATES
CHEMISTRY
COMPLEXES
DIAGRAMS
DISTRIBUTION
ELECTROLYTES
EQUILIBRIUM
HYDROLYSIS
IONIC STRENGTH
MASS
MASS EFFECT LAW
MEASURED VALUES
NUMERICALS
PARTITION
PLANNING
REACTION KINETICS
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
STABILITY
TESTING
THERMODYNAMICS
TRACER TECHNIQUES
URANYL NITRATES
WATER