| 双水相体系中镧与钛的分离及光谱性能 |
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| 引用本文： | 邓凡政,石影,王海生.双水相体系中镧与钛的分离及光谱性能[J].光谱学与光谱分析,2002,22(3):441-443. |
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| 作者姓名： | 邓凡政 石影 王海生 |
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| 作者单位： | 淮北煤炭师范学院化学系,安徽,淮北,235000 |
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| 摘 要： | 在聚乙二醇-硫酸铵-铬天青S双水相体系中，用铬天青S作萃取剂，研究了La(Ⅲ），Ti(Ⅳ），Zr（Ⅳ）的液-液萃取行为，在pH5.5时，实现了体系中La(Ⅲ）与Ti(Ⅳ)的分离，通过加入表面活性剂测定光谱方法，研究了高聚物相中La(Ⅲ）的存在形态。
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| 关 键 词： | 双水相体系 光谱性能 镧 钛 聚乙二醇 铬天青S 分离 硫酸铵 萃取 |
| 文章编号： | 1000-0593(2002)03-0441-03 |
| 修稿时间： | 2000年12月27 |
Study on the Separation and Spectroscopic Characteristics of Titanium and Lauthanum in Two-phase Aqueous Systems |
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| Fan-zheng Deng,Ying Shi,Hai-sheng Wang.Study on the Separation and Spectroscopic Characteristics of Titanium and Lauthanum in Two-phase Aqueous Systems[J].Spectroscopy and Spectral Analysis,2002,22(3):441-443. |
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| Authors: | Fan-zheng Deng Ying Shi Hai-sheng Wang |
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| Institution: | Department of Chemistry, Huaibei Coal Teachers' College, Huaibei 235000, China. |
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| Abstract: | In Polyethylene glycol-ammonium sulfate-chrome azurol S two-phase aqueous systems, the liquid-liquid extraction behavior of Ti(IV), Zr(IV) and La(III) with chrome azurol S as the extractant was investigated. Experimental result indicated that the complex of La(III) with CAS was almost completely extracted by the PEG phase, Zr(IV) partly extracted, while Ti(IV) was not extracted from the aqueous solution of pH 4.5-7.0. So extraction separation of Ti(IV)-La(III) was carried out at pH 5.5. Comparing to a general water phase spectrophotometry, the new method has advantage of maximum wavelength of complex shifted to the red wavelength, existing form of complex anion in PEG phase was studied by the addition of surface-active agent and the measurement of absorption spectra. |
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| Keywords: | Lauthanum Titanium Polyethylene glycol Chrome azurol S Separation |
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