PREPARATION OF NUCLEAR FUEL COMPOSITION AND RECYCLING
    4.
    发明申请
    PREPARATION OF NUCLEAR FUEL COMPOSITION AND RECYCLING 审中-公开
    核燃料组合物的制备和回收

    公开(公告)号:US20100301288A1

    公开(公告)日:2010-12-02

    申请号:US12476015

    申请日:2009-06-01

    IPC分类号: C09K11/04

    CPC分类号: G21C3/623 Y02E30/38

    摘要: A composition is prepared by heating particles of a nuclear fuel material in a metal salt that decomposes below 1000° C. to form a metal oxide. Magnesium nitrate hexahydrate is an example of such a metal salt. A resulting composition includes the particles homogeneously dispersed in a matrix of magnesium oxide. After the composition is used in a nuclear reactor, the now spent composition is removed, cooled, and the matrix is dissolved away from the spent particles, which can be reused in another nuclear fuel composition. The recovered fuel particles also contain some fission products that provide a radiation barrier that discourages theft of the recovered fuel particles.

    摘要翻译: 通过将核燃料材料的颗粒加热到分解在1000℃以下的金属盐中以形成金属氧化物来制备组合物。 硝酸镁六水合物是这种金属盐的一个例子。 所得组合物包括均匀分散在氧化镁基质中的颗粒。 在将组合物用于核反应堆中之后,将现在使用的组合物除去,冷却,并将基质溶解于废颗粒中,废粉可以再次用于另一种核燃料组合物。 回收的燃料颗粒还含有一些裂变产物,其提供阻止回收的燃料颗粒被盗窃的辐射屏障。