沉淀法分离Cs和Rb的研究
详细信息Study of Separation of Cs and Rb With Precipitation Process
-
摘要: 以137Cs和86Rb为示踪剂对硅钨酸铯和碘铋酸铯两种沉淀法分离Cs和Rb进行了研究。结果表明,碘铋酸铯沉淀法比硅钨酸铯沉淀法分离效果好;采用亚化学计量的碘铋酸钾分离时,Cs沉淀率可达70%~80%,Cs、Rb的分离因数大于100。Abstract: In order to separate ceasium and rubidium,the separation methods for Cs with Cs_3Bi_2I_9 and Cs_4SiW_(12)O_(40) precipitations are studied by ~(137)Cs and ~(86)Rb radioactive indicators.The results show that the separation effect for Cs and Rb with Cs_3Bi_2I_9 precipitation is better than that with Cs_4SiW_(12)O_(40) precipitation. Under the best substoichiometric codition, the chemical recovery of Cs is 70%~80% and the separation factor for Cs and Rb is higher than 100 with the Cs_3Bi_2I_9 precipitation.
-
Keywords:
- Cs /
- Rb /
- precipitation /
- Cs_3Bi_2I_9 /
- Cs_4SiW_(12)O_(40)
-
-
[1] 丁有钱,崔安智,张生栋,等 从裂变产物中提取138Cs的进展[A] 第六届核化学与放射化学学术讨论会论文摘要集[C] 第六届核化学与放射化学学术讨论会 兰州 2002 [2] 阎和信 无载体放射性137Cs的分离[J] 原子能科学技术,1964,10:1169 [3] 孙亦,王文昌,韩静芳 四苯硼钠萃取法快速分析裂变产物中的铯 137[J] 原子能科学技术,1965,8:717~721 [4] 杨群,韩延德,刘大鸣 冠醚萃取模似高放废液中的Sr2+、Cs+的研究[J] 核化学与放射化学,1996,18(1):62 [5] 郭景儒,黄浩新主编 裂变产物分析[M] 北京:原子能出版社,1985 312~328 [6] AumannDC,WeismannD.IndependentIsomericYieldRatiosof89Rband138CsinTheSpontaneousFissionof252Cf[J].JInorgNuclChem,1978,40:1611~1618. [7] BunkerME,DuffieldRB,MizeJP.Disintegrationof138Cs[J].PhysRev,1956,103(5):1417. [8] FriedlanderG,FriedmanL,GordonB.ExcitationFunctionsandChargeDispersionintheFissionofUraniumby0.1 to6.2 GeVProtons[J].PhysRev,1963,129(4):1809. [9] SmithHL,KleinbergJ,HolmesME.CollectedRadiochemicalProcedures[R]:LA 1721,4thed.LosAlamos:LANL,1982.43~46.
计量
- 文章访问数: 2126
- HTML全文浏览量: 1
- PDF下载量: 2421