Method for manufacturing gadolinium-containing nuclear fuels

Details Method for manufacturing gadolinium-containing nuclear fuels Method for manufacturing gadolinium-containing nuclear fuels

G - Physics

21

C

31/88

G21C 3/00 (2006.01) C01G 43/00 (2006.01) G21C 3/62 (2006.01)

Patent

CA 1122396

Abstract of the Disclosure Mixed crystals containing uranium and gadolinium for conversion into nuclear fuels by introducing NH3, C02 and a uranyl salt solution con- taining dissolved gadolinium into a body of an aqueous solution of ammonium carbonate. As a result salts of gadolinium and uranium complexes precipitate and during precipitation there is a lowering of the pH from 9 down to 8.2. The precipitate is separated and converted to uranium and gadolinium oxides. Preparing the mixed crystals in this manner results in the gadolinium being finely and homogeneously distributed into the oxidic nuclear fuel.

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