Process for preparation of uranium tetrafluoride

Details Process for preparation of uranium tetrafluoride Process for preparation of uranium tetrafluoride

1989-06-12

1990-05-29

Lechert, Jr., Stephen J.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423259, 472159, C01G 5600

Patent

active

049294300

ABSTRACT:
A process for preparing uranium tetrafluoride by reacting a uranous solution with a hydrofluoric acid solution in a fluorination precipitation tank is provided. A cylindrical inner tube having upper and lower ends opened is disposed in the tank in the longitudinal direction thereof. An agitator is arranged within the inner tube to generate a descending or ascending stream inside the inner tube and a ascending or descending stream outside the inner tube, thereby producing a circulation of reaction liquor in the tank. The uranous solution and the hydrofluoric acid solution are introduced into the tank from the upper part thereof and the produced uranium tetrafluoride crystals are withdrawn from the lower part of the tank together with a part of the reaction mother liquor. The amount of the hydrofluoric acid solution added to the uranous solution is adjusted so that the fluorine concentration in the reaction mother liquor in the tank is maintained at 2 to 4 g/l.

REFERENCES:
patent: 4062923 (1977-12-01), Takada et al.
Perry & Chilton, Chemical Engineers' Handbook, 5th ed. 1973 pp. 19-26-19-30.

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