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- W2291176145 abstract "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)" @default.
- W2291176145 created "2016-06-24" @default.
- W2291176145 creator A5047835653 @default.
- W2291176145 date "1962-05-15" @default.
- W2291176145 modified "2023-09-23" @default.
- W2291176145 title "SODIUM FLUOZIRCONATE PRECIPITATION PROCESS FOR ZIRCONIUM FUELS. PART 1. LABORATORY DEVELOPMENT" @default.
- W2291176145 doi "https://doi.org/10.2172/4806322" @default.
- W2291176145 hasPublicationYear "1962" @default.
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