| 摘要 |
PURPOSE: To obtain a production method of pellet in which a pellet of an Mx Oy type sintered oxide for nuclear fuel is produced from a solution of fusible salt of one or more element and also the by-product of deposition, i.e., acid, is entirely reused. CONSTITUTION: The inventive method comprises a step for depositing an element M in an acid medium using hydrogen peroxide. In the deposition step, one of two reactants (salt solution 1 and hydrogen peroxide 2) is dispersed instantaneously into the other to produce a homogeneous mixture and to produce deposition nuclei instantaneously in a continuous liquid phase 4 occupying only a minimum region while discharging a mother liquid 3 quickly. According to the method, a sintered pellet having density exceeding the theoretical density of 96% can be obtained.
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