[1]付宏权,刘培元,陈盈,等.离子液体［Bmim］PF6萃取处理硝基酚废水[J].华侨大学学报(自然科学版),2013,34(3):303-307.[doi:10.11830/ISSN.1000-5013.2013.03.0303]
　FU Hong-quan,LIU Pei-yuan,CHEN Ying,et al.Extraction of Nitrophenol from Wastewater with ［Bmim］PF6 Ionic Liquid[J].Journal of Huaqiao University(Natural Science),2013,34(3):303-307.[doi:10.11830/ISSN.1000-5013.2013.03.0303]
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离子液体［Bmim］PF6萃取处理硝基酚废水()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第34卷
期数:
2013年第3期
页码:
303-307
栏目:
出版日期:
2013-05-20

文章信息/Info

Title:
Extraction of Nitrophenol from Wastewater with ［Bmim］PF6 Ionic Liquid
文章编号:
1000-5013(2013)03-0303-05
作者:
付宏权;  刘培元;  陈盈;  林金清
华侨大学 材料科学与工程学院, 福建 厦门 361021
Author(s):
FU Hong-quan;  LIU Pei-yuan;  CHEN Ying;  LIN Jin-qing
College of Material Science and Engineering, Huaqiao University, Xiamen 361021, China
关键词:
离子液体;  ［Bmim］PF6;  硝基酚;  萃取;  回收
Keywords:
ionic liquid;  ［Bmim］PF6;  nitrophenol;  extraction;  recovery
分类号:
O645.16
DOI:
10.11830/ISSN.1000-5013.2013.03.0303
文献标志码:
A
摘要:
以1-甲基咪唑、氯代正丁烷和六氟磷酸钾为原料,采用两步法制备了疏水性离子液体 ［Bmim］PF6,并用红外光谱及核磁共振对其进行了表征.对［Bmim］PF6萃取废水中的硝基酚,以及离子液体的回收进行了初步研究.实验结果表明:邻硝基酚和对硝基酚在离子液体和废水两相的分配系数分别可达16和30以上,并随pH值的减小和离子液体用量的增大而增大;当pH<2时,两种硝基酚的萃取率都可达93%以上,可用调整pH值进行反萃的方法回收离子液体;当pH=12时,经5
Abstract:
The hydrophobic ionic liquid ［Bmim］PF6 was prepared by two steps with the main raw materials of 1-methylimidazole, chloro-N-butane and potassium hexafluorophosphate and characterized by IR and NMR. Ectraction of nitrophenol(NP)from wastewater with ［Bmim］PF6 and recycling of the ionic liquid have been investigated. The results indicated that distribution coefficients of p-nitrophenol(p-NP)and o-Nitrophenol(o-NP)between ionic liquid and wastewater were up to 16 and 30 resperctively, and increased with the decreasing of pH and the increasing in the amount of ionic liquid. When pH<2, extraction efficiencies of the two NPs were all above 93%. The ionic liquids can be recycled using back extraction when adjusting the pH values. And under the condition of pH=12, NPs in the ionic liquid can be back extracted completely through 5 times, and the rest of ionic liquid can be reused. Repeating the extraction experiment by using the recovery of ionic liquids, extraction efficiency remained basically unchanged.

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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2012-12-15
通信作者: 林金清(1963-),男,教授,主要从事离子液体热力学及其应用的研究.E-mail:linlab@hqu.edu.cn.
基金项目: 国家自然科学基金资助项目(20776057,21246008); 福建省自然科学基金资助项目(2011J01048 )
更新日期/Last Update: 2013-05-20