| 正丙醇-硫氰酸铵-水体系析相萃取分离和富集锗的研究 |
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| 引用本文： | 刘小玉,司学芝,井佩,马万山.正丙醇-硫氰酸铵-水体系析相萃取分离和富集锗的研究[J].化学世界,2011,52(12):725-727. |
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| 作者姓名： | 刘小玉 司学芝 井佩 马万山 |
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| 作者单位： | 1. 信阳师范学院化学化工学院,河南信阳,464000
2. 河南工业大学化学化工学院,河南郑州,450052 |
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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： | 研究了正丙醇-硫氰酸铵-水体系析相萃取分离和富集锗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,在分相过程中,Ge(Ⅳ)和硫氰酸铵生成的Ge(SCN)62-与质子化正丙醇C3H7OH2+形成的缔合物Ge(SCN)62-]C3H7OH2+]2能被正丙醇相完全萃取.当正丙醇、硫氰酸铵和硫...
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| 关 键 词： | 锗 正丙醇 硫氰酸铵 萃取分离 |
Study on Enrichment and Extraction of Germanium in 1-PropanolNH_4SCN-H_2O System with Phase Separation |
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| LIU Xiao-yu,SI Xue-zhi,JING Pei,MA Wan-shan.Study on Enrichment and Extraction of Germanium in 1-PropanolNH_4SCN-H_2O System with Phase Separation[J].Chemical World,2011,52(12):725-727. |
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| Authors: | LIU Xiao-yu SI Xue-zhi JING Pei MA Wan-shan |
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| Affiliation: | LIU Xiao-yu1,SI Xue-zhi2,JING Pei1,MA Wan-shan1(1.College of Chemistry and Chemical Engineering,Xinyang Normal University,Henan Xinyang 464000,China,2.College of Chemistry and Chemical Engineering,Henan University of Technology,Henan Zhengzhou 450052,China) |
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| Abstract: | The behavior and conditions of enrichment and extraction separation of germanium from other metal ions in 1-propanol-NH4SCN-H2O system with phase separation were studied.The results showed that 1-propanol aqueous solution could be well divided into two phases in the presence of(NH4)2SO4.The associated Ge(SCN)62-]C3H7OH+2]2 formed with C3H7OH+2 and Ge(SCN)62-(combined from Ge(Ⅳ) and NH4SCN) could be completely extracted during this process.Ge(Ⅳ) could be quantiatively separated from Cd(Ⅱ),Ce(Ⅲ),Mn(Ⅱ),Pb(Ⅱ),Cr(Ⅲ),Al(Ⅲ),V(Ⅴ),Ni(Ⅱ),Ga(III),Mg(Ⅱ),Zn(Ⅱ) and Fe(II) by extraction.and the extraction percentage of Ge(Ⅳ) was over 97.0% when the concentrations of 1-propanol,NH4SCN and(NH4)2SO4 in solution were 30%(V/V),5.0×10-2 mol/L and 0.2 g/ mL,respectively.The method has been used for the separation and determination of germanium in water samples with satisfactory results. |
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| Keywords: | germanium 1-propanol NH4SCN extraction separation |
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