Process for passivating uranium oxides to control oxidation

Details Process for passivating uranium oxides to control oxidation Process for passivating uranium oxides to control oxidation

1989-07-31

1991-12-03

Miller, Edward A.

Chemistry of inorganic compounds

Radioactive

Uranium compound

264 05, 423261, 427 6, C01G 4300

Patent

active

050698885

ABSTRACT:
A method of passivating the surface of particulate uranium oxides is disclosed comprising a process of continuously contacting uranium oxide particles with an oxygen containing and cooling counter flowing gas stream. The treatment produces a protective surface which inhibits subsequent oxygen chemisorption of the particulate uranium oxides.

REFERENCES:
patent: 3761547 (1973-09-01), Grossman et al.
patent: 4572810 (1986-02-01), Le Blanc
patent: 4617158 (1986-10-01), Braun et al.
patent: 4751098 (1988-06-01), Parks et al.
Bannister, J. Nucl. Materials, "The Storage Behavior of Uranium Dioxide Powders", 26, (1968) pp. 174-184.

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