化学工程2011，Vol.39Issue(9)：21-25,5.
仲辛醇与仲辛酮萃取苯酚稀溶液性能研究
Extraction characteristics of phenol in dilute solution with 2-octanol and 2-octanone
陈颖冰 1秦炜 1戴猷元1
作者信息
- 1. 清华大学化学工程系化学工程联合国家重点实验室,北京100084
- 折叠
摘要
Abstract
Experiments were carried out to provide guidance for industrial phenolic wastewater treatment. Distribution coefficient data were presented for phenol in its dilute solution at ambient temperature with physical extraction solvents 2-octanol and 2-octanone. The effects of pH values and the initial phenol mass concentration on the extraction equilibrium were studied. The results show that both solvents perform well in the acid solution and neutral solution, while 2-octanone has better performance than 2-octanol; in the alkaline solution, the distribution coefficient declines sharply because of the dissociation of phenol molecule to ions. The extraction with mixed solvent of 2-octanol and 2-octanone shows the synergistic effect, of which the mechanism is related to the interaction between the molecules of solvents, molecules of solvents and solutes caused by the mixed solvent. Salting-out effect of Na2SO4 and NaCl can enhance the extraction of phenol with 2-octanol, 2-octanone and TBP/kerosene respectively. The results of salting-out effect were correlated empirically with a good deviation. The synergistic effect and the salting-out effect can be applied to intensify the extraction process.关键词
仲辛醇/仲辛酮/苯酚/萃取/协萃效应/盐析效应Key words
2-octanol/ 2-octanone/ phenol/ extraction/ synergistic effect/ salting-out effect分类
化学化工引用本文复制引用
陈颖冰,秦炜,戴猷元..仲辛醇与仲辛酮萃取苯酚稀溶液性能研究[J].化学工程,2011,39(9):21-25,5.
