第 46 卷第 3 期 Vol. 46 No. 3 2016 年 6 月 Jun 2016

所属栏目：医药及中间体 络合萃取法处理含酚废水的研究

刘 欢1，2，陈 灿1，2，邱德跃1，2，张 燕1，2，马 林1，2，秦岳军1，2，干兴利1，2 （1. 湖南化工研究院有限公司 国家农药创制工程技术研究中心，湖南 长沙 410014；2. 农用化学品湖南省重点实验室，湖南 长沙 410014）

摘　要：以磷酸三丁酯（TBP）作萃取剂，正辛醇作稀释剂，络合萃取处理邻异丙氧苯酚（OP）废水中的酚，考察了pH、稀释剂配比、油／水相比和反应温度等对OP废水中挥发酚萃取效率的影响，并对酚进行了反萃取分离回收。实验结果表明：在pH=3、温度为30℃时，用含5%TBP的正辛醇萃取，萃取率达93%；再用10%的氢氧化钠溶液于45℃，按体积比1∶1反萃取，酚回收率达90%，B／C由0.10提高到0.35。

关键词：络合萃取；OP废水；酚；反萃取

中图分类号：X78　　文献标识码：A　　文章编号：1009-9212（2016）03-0052-05

Treatment of Wastewater Containing Phenols by Complexation-extraction Process

LIU Huan1,2, CHEN Can1,2, QIU De-yue1,2, ZHANG Yan1,2, MA Lin1,2, QING Yue-jun1,2, GAN Xing-li1,2 (1. Hunan Research Institute of Chemistry and Chemical Engineering Co.,Ltd., National Engineering Research Center to Agrochemicals, Changsha 410014, China; 2. Hunan Province Key Laboratory for Agrochemicals, Changsha 410014, China)

Abstract：A complexatio-extraction treatment of wastewater containing phenols was developed using tributyl phosphate (TBP) as the extraction agent and octyl alcohol as the diluent. The factors on extraction efficiency of volatile phenol in OP waste water including pH, reaction temperature, ratio of diluent and oil/water was studied. The experimental results indicated that the extraction rate could reach 93% using 5% TBP-octyl alcohol at pH of 3 and a temperature of 30℃. The stripping extraction recovery of phenol was more than 90% at a temperature of 45℃,a concentration of NaOH of 10% and stripping ratio of 1:1. The B/C increased from 0.10 to 0.35.

Key words：complexation-extraction; OP wastewater; phenol; back-extraction

作者简介：刘 欢（1990-），女，湖南宁乡人，助理研究员，硕士，研究方向：工业废水处理及资源化。

收稿日期： 2016-05-1