| 在Na2CO3溶液中季铵盐萃取Zr机理的研究 |
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| 引用本文： | 刘丽君,汤宝龙,周慧,姜耀中,林灿生.在Na2CO3溶液中季铵盐萃取Zr机理的研究[J].核化学与放射化学,2005,27(2):100-103. |
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| 作者姓名： | 刘丽君 汤宝龙 周慧 姜耀中 林灿生 |
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| 作者单位： | 中国原子能科学研究院,放射化学研究所,北京,102413;中国原子能科学研究院,放射化学研究所,北京,102413;中国原子能科学研究院,放射化学研究所,北京,102413;中国原子能科学研究院,放射化学研究所,北京,102413;中国原子能科学研究院,放射化学研究所,北京,102413 |
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| 摘 要： | 用红外光谱分析和季铵盐萃取研究了Zr—DBP界面物在碳酸钠溶液中的溶解机理。结果表明，Zr—DBP界面物在碳酸钠溶液中生成了能溶于水的配合阴离子Zr(CO3)4^4-或ZrO(CO3)3^4-，Zr—DBP界面物溶解前后与纯HDBP的红外谱图相比，溶解液中DBP的P—O键的特征峰与纯HDBP的更为接近。说明界面物在溶解Na2CO3过程中，破坏了原有界面物的配合，DBP不再与Zr配合，而以自由离子形式存在。
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| 关 键 词： | 季铵盐 Zr-DBP界面物 溶解 碳酸钠 |
| 文章编号： | 0253-9950(2005)02-0100-04 |
| 修稿时间： | 2004年8月25日 |
Extraction of Zr from Na2CO3 Solution by Quaternary Ammonium Salt |
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| LIU Li-jun,TANG Bao-long,ZHOU Hui,JIANG Yao-hong,LIN Can-sheng.Extraction of Zr from Na2CO3 Solution by Quaternary Ammonium Salt[J].Journal of Nuclear and Radiochemistry,2005,27(2):100-103. |
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| Authors: | LIU Li-jun TANG Bao-long ZHOU Hui JIANG Yao-hong LIN Can-sheng |
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| Affiliation: | LIU Li-jun, TANG Bao-long, ZHOU Hui, JIANG Yao-hong, LIN Can-sheng China Institute of Atomic Energy, P.O.Box 275(93), Beijing 102413, China |
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| Abstract: | The dissolution mechanism of Zr-DBP crud in Na_2CO_3 solution is studied by both infrared spectrum analysis and extraction of Zr-DBP cruds by quaternary ammonium salt in Na_2CO_3 solution. The results show that the main reason of crud dissolved in Na_2CO_3 solution is that a new complex ion, either Zr(CO_3)_4 4- or ZrO(CO_3)_3 4- or both, is formed by the complex of Zr and CO_3 2- . Infrared analysis result shows that the peak of P=O double bond of Zr-DBP in Na_2CO_3 solution is closer to the peak of pure HDBP than to the peak of Zr-DBP crud. It shows that the organic complex is destroyed after crud is dissolved in Na_2CO_3 solution. DBP is not combined with Zr any more and exists as a free ion. |
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| Keywords: | Na_2CO_3 solution dissolve crud quaternary ammonium salt |
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