The Separation of Americium from Light Lanthanides by Cyanex 301 Extraction
The Separation of Americium from Light Lanthanides by Cyanex 301 Extraction
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DOI：
10.1524/ract.1995.68.2.95
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发表时间：
1995-02
期刊：
影响因子：
--
通讯作者：
Yongjun Zhu
中科院分区：
文献类型：
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作者：
Yongjun Zhu
用煤油中的1 M Cyanex 301从硝酸钠溶液中萃取示踪量的Am和i52-i54 β u3+的行为非常相似。但在大量Nd + Pr硝酸盐（0.2- 0.7M）存在下，Cyanex 301皂化至16%选择性萃取Am。Am/Eu和Am/Nd + Pr的分离因子分别为500和600。在三级萃取、三级洗涤的间歇逆流分级萃取工艺中，有机相含241 Am 99.9%，Nd + Pr <1%，并观察了萃取剂的辐解稳定性。
The extraction behavior of tracer amount of Am and i52-i54ßu3+ from sodium nitrate solution by 1 Μ Cyanex 301 in kerosene are quite similar. But in the presence of macro amount of Nd + Pr nitrates (0.2-0.7 M), Cyanex 301 saponified to 16% selectively extracts Am. The separation factors Am/Eu and Am/Nd + Pr are of 500 and 600 respectively. In a batch counter current fractional extraction process with 3 extraction stages and 3 scrubbing stages, the organic phase contained 99.9% 241 Am and <1% Nd + Pr. The radiolytic stability of the extractant has been observed.