Method of precipitating ADU

Details Method of precipitating ADU Method of precipitating ADU

1979-04-30

1981-03-10

Schafer, Richard E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423253, C01G 100, C01G 5600

Patent

active

042553938

ABSTRACT:
A process is disclosed for improving the quality of an ammonium diuranate (ADU) precipitate. Ammonium hydroxide is added to a solution of uranyl fluoride in the presence of a polymer such as polyacrylic acid, polyacrylonitrile, or polyacrylamide. The presence of the polymer reduces the particle size of the precipitate and increases its settling rate. A reduced particle size provides an ADU powder which is suitable for nuclear fuel fabrication and an increased settling rate enhances the dewatering operation of the ADU slurry.

REFERENCES:
patent: 3726650 (1973-04-01), Welty
patent: 3758664 (1973-09-01), Gerrald
patent: 3961027 (1976-06-01), Crossley
patent: 3998925 (1976-12-01), Fuller

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