REACTION CHAMBER FOR PRODUCING URANIUM DIOXIDE POWDER BY REDUCTIVE PYROHYDROLYSIS OF URANIUM HEXAFLUORIDE Russian patent published in 2024 - IPC C01G43/25 B01J8/24 

FIELD: chemical industry.

SUBSTANCE: reaction chamber for producing uranium dioxide powder by the method of reductive pyrohydrolysis of uranium hexafluoride is a housing 1 with upper 2 and lower 3 covers, containing an upper filtration zone 7, a first reaction zone 8 for converting uranium hexafluoride into uranyl fluoride, a second reaction zone 9 for reducing uranyl fluoride to dioxide uranium and device 13 for unloading the resulting powder. The upper filtration zone 7 is equipped with metal ceramic filters 4, regenerated by nitrogen supplied through the input system 5. The second reaction zone 9 is equipped with a gas distribution grid to create a fluidized bed and a pipe 12 for supplying a mixture of steam, hydrogen and nitrogen. On the side wall of the first reaction zone 8, the first and second nozzles 10 and 11 are symmetrically located for supplying uranium hexafluoride, hydrogen and water vapor, made movable in a vertical plane.

EFFECT: increasing the time between repairs of the reaction chamber and the service life of filter elements, as well as increase productivity by eliminating the accumulation of intermediate products.

1 cl, 1 dwg