| HBMPPT-DOSO-甲苯体系对铀(Ⅵ)的萃取及铀(Ⅵ)、钍(Ⅳ)之间的分离 |
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| 引用本文： | 余绍宁,赵山银,包伯荣.HBMPPT-DOSO-甲苯体系对铀(Ⅵ)的萃取及铀(Ⅵ)、钍(Ⅳ)之间的分离[J].核技术,2000(1). |
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| 作者姓名： | 余绍宁 赵山银 包伯荣 |
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| 作者单位： | 海军医学研究所!上海 ２００４３３(余绍宁，赵山银)，中国科学院上海原子核研究所!上海 ２０１８００(包伯荣) |
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| 摘 要： | 以个苯甲酰基－２，４二氢－５－甲基－２－苯基－３Ｈ－吡唑硫酮－３（ＨＢＭＰＰＴ）为萃取剂、二正辛基亚砜（ＤＯＳＯ）为协萃剂，研究其在硝酸介质中对铀（Ⅵ）的萃取行为，以及萃取剂浓度、酸度等各种因素对萃取分配比的影响，以确定两种萃取剂的协同萃取及分离效果。结果表明，ＨＢＭＰＰＴ和ＤＯＳＯ有较好的协同萃取效果，一定条件下，铀（Ⅵ）、钍（Ⅳ）的分离系数可达５２３。
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| 关 键 词： | 铀（Ⅵ） 钍（Ⅳ） HBMPPT DOSO 溶剂萃取 |
Synergistic extraction of U(VI) and separation of U(VI) and Th(IV) from nitric acid with HBMPPT and DOSO in toluene |
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| YU Shaoning, ZHAO Shanyin.Synergistic extraction of U(VI) and separation of U(VI) and Th(IV) from nitric acid with HBMPPT and DOSO in toluene[J].Nuclear Techniques,2000(1). |
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| Authors: | YU Shaoning ZHAO Shanyin |
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| Abstract: | (Shanghai institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai 201800)The synergistic extraction of U(VI) and separation of U(VI) and TI(IV) from nitricacid solution by HBMPPT (4-benzoyl-2,4-dihydro-5-mepgrazol-3-thione) and DOSO (di-n-octyl sulfoxide) in toluene was studied. Theextraction ability of HBMPPT was not so high as that of its parent (HBMPP), butwhen a little DOSO was added in, the ability to extract U(VI) was improved rapidly.The syndrgistic extracted complexes may be presented as a mixture of UO_2NO_3BMPPT, UO_2NO_3, BMPPT. DOSO, UO_2(BMPPT)_2 and UO_2(BMPPT)_2. DOSO forU(VI). When HBMPPT-DOSO was used to separate U(VI) from TI(W), the separationcoefficient reached 523 under certain condition. |
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| Keywords: | Uranium Thorium HBMPPT DOSO Solvent extraction |
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