Patent ID: 6656391
Filing Date: 2003-12-02
Classification: B01J,C01G,C01P,G21C,Y02E,Y10S

Abstract:
A process for preparing a powder of sinterable uranium dioxide UO2 comprising:i) preparing an aqueous suspension of a powder of UO2 obtained by dry process conversion of uranium hexafluoride, wherein said suspension comprises 50 to 80% by weight of UO2, and at least one additive selected from the group consisting of one or more deflocculation agents, one or more organic binders, hydrogen peroxide and a powder of U3O8, where the viscosity of the suspension does not exceed 250 mPa.sec; and ii) atomizing the suspension and drying the suspension in a hot gas, at a temperature of 150 to 300Â° C., to obtain the powder of UO2 having an average particle size of 20 to 100&mgr;m.