| Ion Exchange Extraction of Boron from Aqueous Fluids by Amberlite IRA 743 Resin |
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| 作者姓名： | 肖应凯 廖步勇 刘卫国 肖云 SWIHART GeorgeH. |
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| 作者单位： | Qinghai Institute of Salt Lakes，Chinese Academy of Sciences，Qinghai Institute of Salt Lakes，Chinese Academy of Sciences，State Key Laboratory of Loess and Quaternary Geology，Institute of Earth Environment，Chinese Academy of Sciences，Department of Earth Sciences，University of Memphis，Department of Earth Sciences，University of Memphis Xining，Qinghai 810008，China，State Key Laboratory of Loess and Quaternary Geology，Institute of Earth Environment，Chinese Academy of Sciences，Xi′an，Shaanxi 710075，China，Xining，Qinghai 810008，China，Xi′an，Shaanxi 710075，China，Memphis，TN 38152，USA，Memphis，TN 38152，USA |
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| 基金项目： | theNationalNaturalScienceFoundationofChina (No .40 173 0 13 ) |
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| 摘 要： | The ion exchange characteristics d Amherlite IRA 743 resin for extracting boron from aqueous fluids have been investigated in detail. The results show that AmherHte IRA 743 resin, a boron specific ion exchange resin, can quantitatively extract boron as the B (OH)4- spedes from weakly basle solution. Some exchangeable anions such as CI- and SO4^2- are present, resulting in an increase in pH value of the loeded solution within the nan, and the boron in natural aqueous fluids with low nH is also extracted by Amberlite IRA 743 resin. However, the voiume of loaded solution must be restricted. The maximum voiume of loaded solution giving quantitative extraction of boron decreases for sample soh.,tiom of lower pH value. Warm HCI solution is more effective than room temperature HCI solution for eluting boron from Amberllte IRA 743 resin.
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| 关 键 词： | 离子交换萃取法 硼 分离 水溶剂 离子交换树脂 安伯来特 |
Ion Exchange Extraction of Boron from Aqueous Fluids by Amberlite IRA 743 Resin |
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| Xiao Ying‐Kai,Liao Bu‐Yong,Liu Wei‐Guo,Xiao Yun,Swihart George H..Ion Exchange Extraction of Boron from Aqueous Fluids by Amberlite IRA 743 Resin[J].Chinese Journal of Chemistry,2003,21(8):1073-1079. |
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| Authors: | Xiao Ying‐Kai Liao Bu‐Yong Liu Wei‐Guo Xiao Yun Swihart George H |
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| Abstract: | The ion exchange characteristics of Amberlite IRA 743 resin for extracting boron from aqueous fluids have been investigated in detail. The results show that Amberlite IRA 743 resin, a boron specific ion exchange resin, can quantitatively extract boron as the B(OH) - 4 species from weakly basic solution. Some exchangeable anions such as Cl - and SO 2- 4 are present, resulting in an increase in pH value of the loaded solution within the column, and the boron in natural aqueous fluids with low pH is also extracted by Amberlite IRA 743 resin. However, the volume of loaded solution must be restricted. The maximum volume of loaded solution giving quantitative extraction of boron decreases for sample solutions of lower pH value. Warm HCl solution is more effective than room temperature HCl solution for eluting boron from Amberlite IRA 743 resin. |
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| Keywords: | separation of boron ion exchange boron specific resin |
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