Phenomene de concentration du fer au voisinage de la cathode au cours de l'electroraffinage de l'uranium en bains de sels fondus

Phenomene de concentration du fer au voisinage de la cathode au cours de l'electroraffinage de l'uranium en bains de sels fondus
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阴极电解槽中铀电解浓缩现象

DOI:
10.1016/0013-4686(63)80062-6
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发表时间:
1963
期刊:
影响因子:
--
通讯作者:
A. Simenauer
A. Simenauer
中科院分区:
--
文献类型:
--
作者:
G. Chauvin;H. Coriou;A. Simenauer

文献摘要

被引文献

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在电解精炼过程中,发现杂质,特别是Fe,集中在靠近阴极的电解质层中。受影响的电解质层约为100 μ厚,并且Fe浓度从该层的外部到阴极的表面增加约100倍(即,细化的U的枝晶的表面)。结果表明,有一些相关的知识电解精炼的一般机制。因此,人们可以解释,例如,为什么精制铀的纯度取决于,正如经常观察到的那样,在用于消除盐的最后洗涤之后,残留在枝晶中的电解质的量。(auth)
During electrorefining, impurities, notably Fe, are found to concentrate in the layer of electrolyte next to the cathode. The layer of electrolyte affected is about 100 mu thick, and the Fe concentration increases by a factor of about 100, from the external part of the layer to the surface of the cathode (i.e., the surface of the dendrites of refined U). The results are shown to have some relevance to knowledge of the general mechanism of electrorefining. Thus one can explain, for example, why the purity of the refined U depends, as often observed, on the quantity of residual electrolyte occluded in the dendrites after the final washing used to eliminate salts. (auth)