Uranium dioxide calcining apparatus

Details Uranium dioxide calcining apparatus Uranium dioxide calcining apparatus

C - Chemistry, Metallurgy

01

G

23/227, 39/27

C01G 43/01 (2006.01) C01G 43/025 (2006.01) F27B 7/32 (2006.01) F27B 7/38 (2006.01)

Patent

CA 1042181

URANIUM DIOXIDE CALCINING APPARATUS Abstract of the Disclosure This invention relates to an improved continuous calcining apparatus for consistently and controllably pro- ducing from calcinable reactive solid compounds of uranium, such as ammonium diuranate, uranium dioxide (UO2) having an oxygen to uranium ratio of less than 2.2. The apparatus comprises means at the outlet end of a calciner kiln for receiving hot UO2, means for cooling the UO2 to a temperature of below 100°C and conveying the cooled UO2 to storage or to subsequent UO2 processing apparatus where it finally comes into contact with air, the means for receiving cooling and conveying being sealed to the outlet end of the calciner and being maintained full of UO2 and so operable as to exclude atmospheric oxygen from coming into contact with any UO2 which is at elevated temperatures where it would readily oxidize, without the use of extra hydrogen gas in said means.

215167

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