Process for producing uranium oxides

Details Process for producing uranium oxides Process for producing uranium oxides

1987-12-02

1989-05-23

Terapane, John F.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423260, 423 15, C01G 4301, C01G 43025, C22B 6002

Patent

active

048329240

ABSTRACT:
The present invention provides a process for producing a uranium oxide by dissolving a yellow cake in sulfuric acid or hydrochloric acid, bringing the obtained solution into contact with a chelating resin of diaminocarboxylic acid type and subjecting the product to neutralizing precipitation followed by heat treatment. By the contact of the solution with the chelating resin, iron, copper, molybdenum and vanadium among the metallic impurities are removed and in the subsequent neutralizing precipitation step, other metallic impurities such as aluminum, calcium, magnesium, sodium and potassium are removed. This process can easily produce uranium oxide having a high purity using a simple apparatus.

REFERENCES:
patent: 3052515 (1962-09-01), Donaruma
patent: 4292279 (1981-09-01), Reusser
patent: 4375452 (1983-03-01), Jan et al.
patent: 4517096 (1985-05-01), Sekine et al.
patent: 4696768 (1987-09-01), Ali et al.

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