| 汞与铁、镓、铑、铈和锌的绿色析相萃取富集和分离研究 |
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| 引用本文： | 翟秋阁,司学芝,马冬冬,马万山.汞与铁、镓、铑、铈和锌的绿色析相萃取富集和分离研究[J].信阳师范学院学报(自然科学版),2012(2):239-241. |
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| 作者姓名： | 翟秋阁 司学芝 马冬冬 马万山 |
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| 作者单位： | 信阳师范学院化学化工学院;河南工业大学化学化工学院 |
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| 基金项目： | 河南省教育厅自然科学研究计划项目(2006150023) |
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| 摘 要： | 研究水-溴化钾-正丙醇-硫酸铵体系绿色析相萃取汞的行为及与一些金属离子分离的条件.结果表明,硫酸铵能使正丙醇的水溶液分成两相,HgBr24-与质子化正丙醇(C3H7OH2+)形成的缔合物HgBr24-]C3H7OH2+]2能被正丙醇相完全萃取.当溶液中溴化钾、硫酸铵和正丙醇的浓度分别为7.0 mmol/L,200 g/L和30%(v/v)时,Hg2+的萃取率达到97.3%以上,而Fe2+、Ga3+、Rh3+、Ce3+和Zn2+基本不被萃取,实现了Hg2+与上述金属离子的分离.
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| 关 键 词： | Hg2+ 溴化钾 正丙醇 萃取分离 |
Green Extraction and Enrichment Separated of Hg from Fe,Ga,Ce and Zn |
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| ZHAI Qiu-ge,SI Xue-zhi,MA Dong-dong,MA Wan-shan.Green Extraction and Enrichment Separated of Hg from Fe,Ga,Ce and Zn[J].Journal of Xinyang Teachers College(Natural Science Edition),2012(2):239-241. |
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| Authors: | ZHAI Qiu-ge SI Xue-zhi MA Dong-dong MA Wan-shan |
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| Institution: | 1*(1.College of Chemistry and Chemical Engineering,Xinyang Normal University,Xinyang 464000,China; 2.College of Chemistry and Chemical Engineering,Henan University of Technology,Zhengzhou 450052,China) |
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| Abstract: | The behavior and conditions of extraction separation of Hg2+ from other metal ions in water-potassium bromide-n-propyl alcohol-ammonium sulphate system were studied.The results showed that the n-propyl alcohol-water solution could be well divided into two phases when ammonium sulphate was added.The associated complex HgBr2-4]C3H7OH+2]2formed with C3H7OH+2 and HgBr2-4 could be completely extracted during this process.Hg2+ could be quantiatively separated from Fe2+,Ga3+,Rh3+,Ce3+ and Zn2+ by extraction,and the extraction efficiency of Hg2+ was higher than 97.3% when the concentrations of potassium bromide,ammonium sulphate and n-propyl alcohol in solution are 7.0 mmol/L,200 g/L and 30%(v/v),respectively. |
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| Keywords: | mercury n-propyl alcohol potassium bromide extraction separation |
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