| 甲基膦酸二甲庚酯(P_(350))—吸附树脂萃取色层分离连续测定矿石中铀和钍 |
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| 引用本文： | 钟妙兰.甲基膦酸二甲庚酯(P_(350))—吸附树脂萃取色层分离连续测定矿石中铀和钍[J].岩石矿物学杂志,1984,3(2):176-178. |
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| 作者姓名： | 钟妙兰 |
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| 作者单位： | 核工业部北京第三研究所 |
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| 摘 要： | 本文选用水溶性比TBP小30倍而对钍、铀分离效率高的P_(350)为萃取色层的固定相和对有机萃取剂吸附容量大、传质速度快的新型大孔吸附树脂x-5(聚二乙烯苯)为支持体,以含15%HNO_3和15%NH_4NO_3(或7%Al(NO_3)_3)及2%酒石酸的混合液为铀、钍上柱液,采用5NHCl及0.2%NaF分别解脱钍和铀,分光光度法分别测定之。
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Simultaneous Determination of Uranium and Thorium in Ores with Dimethyheptyl Methylphosphonate (P350) |
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| Abstract: | Dimethylheptyl methylphosphonate (P350) was used as a stationary phase for
concentrating uranium and thorium. The behaviour of Kel-F, silica gel etc as
supporter were tested. A solution containing 15 % HN03, 15 % NH4N03 or 7 0 %
Al (N03) 3] and 2 % tartaric acid of U and Th is used for column sorption. Th
and U were separated by elution of 5N HCl and 0.2% NaF respectively. The
chromatographic column could be used more than 80 times. |
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