Process for the electrochemical oxidation of Am(III) to Am(VI) usable
for separating americium from spent nuclear fuel reprocessing solutions
    1.
    发明授权
    Process for the electrochemical oxidation of Am(III) to Am(VI) usable for separating americium from spent nuclear fuel reprocessing solutions 失效
    将Am(III)电化学氧化成可用于从乏核燃料再处理溶液中分离amer的Am(VI)的工艺

    公开(公告)号:US5609745A

    公开(公告)日:1997-03-11

    申请号:US611625

    申请日:1996-03-06

    摘要: The invention relates to a process for the electrochemical oxidation of Am(III) to Am(VI), usable for separating americium from spent nuclear fuel reprocessing solutions.The process consists of adding to the aqueous nitric solution (17) containing the Am(III) a) heteropolyanion able to complex the americium, such as potassium phosphotungstate and b) the Ag(II) ion for oxidizing Am(III) being converted into Ag(I), and subjecting the solution to an electrolysis under conditions such that electrochemical regeneration takes place of the Ag(II) ion from the Ag(I) ion obtained during said oxidation.After oxidizing Am(III) to Am(VI), it is possible to extract the latter in an appropriate organic solvent.

    摘要翻译: 本发明涉及用于将Am(III)电化学氧化成Am(VI)的方法,其可用于从乏核燃料再处理溶液中分离。。 该方法包括加入含有Am(III)的含水硝酸溶液(17)a)能够复合ium的杂多阴离子,例如磷钨酸钾,和b)用于氧化Am(III)的Ag(II)离子被转化为 Ag(I),并且在使得电化学再生发生在所述氧化期间获得的Ag(I)离子的Ag(II)离子的条件下使溶液进行电解。 在将Am(III)氧化成Am(VI)之后,可以将其在适当的有机溶剂中萃取。