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不同结构的亲水性离子液体双水相萃取铜

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高欣, 范理波, 邓芸, 阮文权. 不同结构的亲水性离子液体双水相萃取铜[J]. 环境化学, 2020, (12): 3504-3510. doi: 10.7524/j.issn.0254-6108.2019083102
引用本文: 高欣, 范理波, 邓芸, 阮文权. 不同结构的亲水性离子液体双水相萃取铜[J]. 环境化学, 2020, (12): 3504-3510. doi: 10.7524/j.issn.0254-6108.2019083102
shu
GAO Xin, FAN Libo, DENG Yun, RUAN Wenquan. Extraction of copper using ionic liquid-based aqueous biphasic systems[J]. Environmental Chemistry, 2020, (12): 3504-3510. doi: 10.7524/j.issn.0254-6108.2019083102
Citation: GAO Xin, FAN Libo, DENG Yun, RUAN Wenquan. Extraction of copper using ionic liquid-based aqueous biphasic systems[J]. Environmental Chemistry, 2020, (12): 3504-3510. doi: 10.7524/j.issn.0254-6108.2019083102
shu

不同结构的亲水性离子液体双水相萃取铜

  • 1. 江南大学环境与土木工程学院, 无锡, 214000;

  • 2. 四川省核工业辐射测试防护院(核应急技术支持中心), 成都, 610500

    • 通讯作者: 邓芸, E-mail: dengyun@jiangnan.edu.cn ; 
  • 基金项目:

    水体污染控制与治理科技重大专项（2017ZX07204002）和中央高校基本科研业务费专项资金（JUSRP11521）资助.

Extraction of copper using ionic liquid-based aqueous biphasic systems

  • 1. School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214000, China;

  • 2. Sichuan Radiation Testing and Protection Institute of Nuclear Industry(Nuclear Emergency Technical Support Center), Chengdu, 610500, China

    • Corresponding author: DENG Yun, dengyun@jiangnan.edu.cn ; 
  • Fund Project: Supported by Major Science and Technology Project for Water Pollution Control and Treatment (2017ZX07204002) and Special Fund for Basic Scientific Research Business Cost of Central University (JUSRP11521).

  • 摘要: 铜萃取技术广泛应用于冶金、前处理和水处理等方面，但传统的萃取需要使用大量挥发性有机溶剂.绿色溶剂离子液体可以与无机盐形成双水相，同时具备离子液体萃取和双水相萃取的优点.本试验研究了10种不同结构的亲水性离子液体所形成的双水相体系，不添加其它萃取剂对Cu2+的萃取性能，并用红外光谱法分析了离子液体和Cu2+之间作用力，探究离子液体对Cu2+萃取的机理.实验结果表明，所测试的离子液体双水相对Cu2+的萃取率为90.93%—97.72%.离子液体阳离子的头基种类和侧链长度与Cu2+萃取率间的关系较为复杂.Zn2+或Fe2+共存可提高对Cu2+的萃取率.萃取机理为咪唑环与Cu2+之间产生了配位作用.
    Abstract: Extraction of copper is an important process in metallurgy, as well as water treatment and pre-treatment. Ionic liquids are green solvents that can form aqueous biphasic systems with inorganic salts, facilitating metal extraction. In this study, we determined the performance of 10 different ionic liquid-based aqueous biphasic systems in the extraction of Cu2+ and established the extraction mechanism by FT-IR. The results indicated an extraction percentage (E%) for Cu2+ ranging from 90.93%—97.72%. The relationship between E%, the type of head group and the length of side chain on the cation was complex, but indicated an interaction between the imidazole ring and Cu2+. Notably, E% of Cu2+ was enhanced in the presence of Zn2+ or Fe2+.
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  • 收稿日期:  2019-08-31
高欣, 范理波, 邓芸, 阮文权. 不同结构的亲水性离子液体双水相萃取铜[J]. 环境化学, 2020, (12): 3504-3510. doi: 10.7524/j.issn.0254-6108.2019083102
引用本文: 高欣, 范理波, 邓芸, 阮文权. 不同结构的亲水性离子液体双水相萃取铜[J]. 环境化学, 2020, (12): 3504-3510. doi: 10.7524/j.issn.0254-6108.2019083102
shu
GAO Xin, FAN Libo, DENG Yun, RUAN Wenquan. Extraction of copper using ionic liquid-based aqueous biphasic systems[J]. Environmental Chemistry, 2020, (12): 3504-3510. doi: 10.7524/j.issn.0254-6108.2019083102
Citation: GAO Xin, FAN Libo, DENG Yun, RUAN Wenquan. Extraction of copper using ionic liquid-based aqueous biphasic systems[J]. Environmental Chemistry, 2020, (12): 3504-3510. doi: 10.7524/j.issn.0254-6108.2019083102
shu

不同结构的亲水性离子液体双水相萃取铜

    通讯作者: 邓芸, E-mail: dengyun@jiangnan.edu.cn ; 
  • 1. 江南大学环境与土木工程学院, 无锡, 214000;
  • 2. 四川省核工业辐射测试防护院(核应急技术支持中心), 成都, 610500
  • 收稿日期:  2019-08-31
基金项目:

水体污染控制与治理科技重大专项（2017ZX07204002）和中央高校基本科研业务费专项资金（JUSRP11521）资助.

摘要: 铜萃取技术广泛应用于冶金、前处理和水处理等方面，但传统的萃取需要使用大量挥发性有机溶剂.绿色溶剂离子液体可以与无机盐形成双水相，同时具备离子液体萃取和双水相萃取的优点.本试验研究了10种不同结构的亲水性离子液体所形成的双水相体系，不添加其它萃取剂对Cu2+的萃取性能，并用红外光谱法分析了离子液体和Cu2+之间作用力，探究离子液体对Cu2+萃取的机理.实验结果表明，所测试的离子液体双水相对Cu2+的萃取率为90.93%—97.72%.离子液体阳离子的头基种类和侧链长度与Cu2+萃取率间的关系较为复杂.Zn2+或Fe2+共存可提高对Cu2+的萃取率.萃取机理为咪唑环与Cu2+之间产生了配位作用.

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