用离子液体[bmim]PF_6和[emim]Beti萃取水中的氯酚  

Extraction of chlorophenols with ionic liquids

作　　者：范洪富[1] 王达[2] 马军[1] 赵春光[3] 刘光贞[3] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [2]大庆石油学院石油工程学院,黑龙江大庆163318 [3]大庆石油管理局钻井一公司,黑龙江大庆163411

出　　处：《大庆石油学院学报》2007年第6期68-70,73,共4页Journal of Daqing Petroleum Institute

基　　金：国家自然科学基金项目(50574017);教育部科学技术研究重点项目(207032)

摘　　要：为彻底从水中去除氯酚,用2种疏水性离子液体[bmim]PF6和[emim]Beti对几种常见的氯酚进行萃取实验.结果表明,萃取在很短时间内达到平衡,温度和pH值对这2种离子液体的萃取有一定影响,大多数氯酚分配因数不因溶液中存在其他的氯酚而改变.这2种离子液体萃取氯酚的分配因数与辛醇萃取氯酚分配因数的相关性因数分别为0.9676和0.9875.In order to extract chlorophenols efficiently and thoroughly,the extraction of several chlorophenols with two types of ionic liquids,that is,PF6 and Beti is studied.The results show that the time spans for the ionic liquid extraction of chlorophenols are both short.Temperature and pH degree have certain effect on the extraction.The distribution ratios of most chlorophenols are not influenced by the presence of other chlorophenols.The correlation coefficients of Beti-water and PF6-water with that of octanol-water are 0.967 6 and 0.987 5 respectively.

关 键 词：离子液体 萃取氯酚 分配因数 PH值 萃取时间 萃取温度 

分 类 号：TE922[石油与天然气工程—石油机械设备]