SODIUM FLUOZIRCONATE PRECIPITATION PROCESS FOR ZIRCONIUM FUELS. PART 1. LABORATORY DEVELOPMENT

Technical Report · Tue May 15 00:00:00 EDT 1962

DOI:https://doi.org/10.2172/4806322· OSTI ID:4806322

Newby, B J

Precipitation, evaporation, and extraction feed preparation conditions are established for the removal of zirconium and fluoride from fuel dissolver product solutions by the addition of sodium formate. A sparingly soluble complex fluozirconate is formed. Ninety-five to 99% of the zirconium and fluoride is separated from the uranium losses of 0.1% or less. Chemical material balances, based on experimental data, were developed for two flowsheets. In one flowsheet, sufficient nitric acid is added to the combined wash solution and filtrate produced during the precipitation step to destroy the formate ion (which inhibits uranium extraction) and to prevent post-precipitation during the evaporation of these solutions. The other flowsheet calls for addition of sufficient nitric acid to destroy the formate ion, but not enough to prevent post- precipitation during the concentration step. Post-precipitation removes additional zirconium and fluoride, but necessitates an additional solids- separation step. (auth)

• Research Organization: Phillips Petroleum Co. Atomic Energy Div., Idaho Falls, Idaho
• Sponsoring Organization: US Atomic Energy Commission (AEC)
• DOE Contract Number: AT(10-1)-205
• NSA Number: NSA-16-023782
• OSTI ID: 4806322
• Report Number(s): IDO-14582
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-62
• Country of Publication: United States
• Language: English

Related Subjects

CHEMISTRY
DECOMPOSITION
EVAPORATION
FILTERS
FLUORIDES
FLUOZIRCONATES
FORMIC ACID
FUELS
LOSSES
NITRIC ACID
PRECIPITATION
RADIOCHEMISTRY
REPROCESSING
SEPARATION PROCESSES
SODIUM COMPOUNDS
SODIUM FLUORIDES
SOLIDS
SOLUTIONS
TESTING
URANIUM COMPOUNDS
WASTE PROCESSING
ZIRCONIUM
ZIRCONIUM COMPOUNDS
ZIRCONIUM FLUORIDES