加压排代色谱法分离纯化^(55,59)Fe制备无载体^(60)Co和^(54)Mn的工艺研究  

Separation of 55,59 Fe from Carrier free 60 Co and 54 Mn by Pressurized Ion exchange Displacement Chromatography

作　　者：陈励权[1,2] 张炜[1,2] 董长发 

机构地区：[1]兰州大学现代物理系 [2]兰州大学化学系

出　　处：《兰州大学学报（自然科学版）》1998年第3期60-65,共6页Journal of Lanzhou University(Natural Sciences)

基　　金：核工业基金

摘　　要：研究了用加压排代色谱法从堆照产物Ｆｅ中分离出无载体放射性同位素６０Ｃｏ，５４Ｍｎ及纯化５５，５９Ｆｅ．以ＤＴＰＡ作排代剂，Ｈ＋为阻滞离子，研究了阻滞离子、排代剂ｐＨ、线性流速及柱比等工艺条件对分离效果的影响．其最佳工艺条件为：ｃＤＴＰＡ＝０．０５ｍｏｌＬ－１，ｃＶｃ＝０．０５～０．１０ｍｏｌＬ－１；ｐＨ＝６．０～８．０；线性流速为７．５～１０ｃｍｍｉｎ－１；柱温：７０℃；柱比大于０．５．Abstract The separation of 55,59 Fe from small quantities of carrier free 60 Co and 54 Mn produced in the neutron irradiation of natural Fe 2O 3 has been studied by pressurized ion exchange displacement chromatography with H + as a barrier ion. In the displacement process, 60 Co is enriched near the frontal boundary of DTPA, otherwise 55,59 Fe is out of the DTPA zone; both are separated completely. In the meanwhile, 54 Mn is enriched on the rear boundary of 55,59 Fe zone. 54 Mn is further purified in the form of 54 MnO - 4 by elution chromatography. Therefore, both the separation and purification of the neutron irradiation products, 55,59 Fe, carrierfree 60 Co and carrier free 54 Mn, have been achieved

关 键 词：加压排代色谱法 反应堆 铁 钴 锰 放射性同位素 

分 类 号：TL921.3[核科学技术—核燃料循环与材料] O615.3[理学—无机化学]