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过程工程学报 ›› 2016, Vol. 16 ›› Issue (3): 413-417.DOI: 10.12034/j.issn.1009-606X.215419

• 反应与分离 • 上一篇    下一篇

[Bmim]PF6-TBP萃取剂微萃取富集水中苯酚

邓雨晨 陈玉焕 侯安宇 孙祎   

  1. 河北工业大学化工学院 河北工业大学化工学院 中国石油天然气管道局四公司 河北工业大学化工学院
  • 收稿日期:2015-12-16 修回日期:2016-03-30 出版日期:2016-06-20 发布日期:2017-04-28
  • 通讯作者: 陈玉焕

Microextraction Enrichment of Phenol in Water with [Bmim]PF6-TBP Extractant

DENG Yu-chen CHEN Yu-huan HOU An-yu SUN Yi   

  1. School of Chemical Engineering, Hebei University of Technology School of Chemical Engineering, Hebei University of Technology NO. 4 Company, China Petroleum Pipeline Bureau School of Chemical Engineering, Hebei University of Technology
  • Received:2015-12-16 Revised:2016-03-30 Online:2016-06-20 Published:2017-04-28
  • Contact: CHEN Yu-huan

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摘要： 将常规离子液体1-丁基-3-甲基咪唑六氟磷酸盐([Bmim]PF6)与特定萃取剂磷酸三丁酯(TBP)结合，建立了超声辅助的微萃取富集目标物苯酚的方法，研究了萃取剂种类、用量、pH值、超声水浴温度及离子强度等因素对富集效果的影响，得到微萃取的最佳实验条件，对该方法的富集机理进行了探讨. 结果表明，在较少的萃取剂用量(30 mL [Bmim]PF6-30 mL TBP)、较低的水浴温度(273.15 K)及无盐效应和pH值影响的条件下，富集倍数最佳达128. 二元萃取剂对苯酚的高效富集，主要是由于TBP中P==O键与苯酚?OH中的?H缔合，形成配合物.

关键词: 离子液体, 二元萃取剂, 富集, 苯酚

Abstract: 1-Butyl-3-methyl imidazolium hexafluorophosphate ([Bmim]PF6) and tributyl phosphate (TBP) were combined as a binary extractant to extract phenol. Influencing variables on the enrichment performance of the binary extractant such as the volumes of [Bmim]PF6 and TBP, pH, temperature and salt were investigated. The enrichment mechanism was explored. The results showed that a high enrichment factor of 128 was achieved in 30 mL TBP-30 mL [Bmim]PF6 system at a low temperature of 273.15 K without addition of salt and buffer solution. The high enrichment performance was attributed to the interaction between P==O of TBP and ?H of phenol OH.

Key words: ionic liquid, binary extractants, enrichment, phenol

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