Process for preparation of uranium tetrafluoride

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

C - Chemistry, Metallurgy

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C01G 56/00 (2006.01) B01J 19/00 (2006.01) B01J 19/18 (2006.01) C01G 43/06 (2006.01)

Patent

CA 1314687

ABSTRACT OF THE DISCLOSURE 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solution are introduced into the tank from the upper part thereof and the produced uranium tetrafluoride crystals are withdrawn from the lower part of the tank together with a part of the reaction mother liquor.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.

603106

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