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本文介绍了研制阳阴极共区电解还原混合澄清槽的目的、设计、调试、铀酸冷运转的情况。并利用该槽进行了铀、钚、镎共存的运行试验,着重了解镎在铀、钚分离过程中的行为。实验证明,钚收率99.9—99.99%;钚中去铀分离系数3900—33000;铀、钚、酸物料衡算良好;镎在槽中的积累和内循环严重;镎在槽中主要以四价形态存在;在1 B槽铀钚分离条件下,从单一产品液流(IBU或IBP)中定量回收镎是不太可能的。
In this paper, the purpose, design, commissioning and uranium acid cooling operation of the anode-cathode common-area electrolytic reduction mixing clarification tank are introduced. The tank was used to test the coexistence of uranium, plutonium and plutonium. The experiment focused on the behavior of uranium and plutonium in separation. Experiments show that the plutonium yield of 99.9-99.99%; plutonium to uranium separation factor of 3900-33000; uranium, plutonium, acid materials well accounting; 镎 in the tank accumulation and internal circulation is serious; 镎 in the tank mainly tetravalent It is not possible to quantitatively recover 镎 from a single product stream (IBU or IBP) under the separation of U-Pu from 1 B-cell.