Instability Mechanisms of Supported Liquid Membrane for Phenol Transport  

作　　者：郑辉东 王碧玉 吴燕翔 任其龙 

机构地区：[1]NationalLaboratory of Secondary Resources Chemical Engineering, Zhejiang University, Hangzhou 310027, China [2]College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China

出　　处：《Chinese Journal of Chemical Engineering》2009年第5期750-755,共6页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （20676023）.

摘　　要：The instability mechanisms of the supported liquid membrane using Celgard 2500 membranes as support and tributyl phosphate dissolved in kerosene as carrier for phenol transport was studied by ele.etroehemical impedance spectroscopy. Emulsion formation is demonstrated to be one of the main causes for the instability of supported liquid membrane in the present system. The emulsion-facilitated conditions, such as higher membrane liquid concentration, faster stirring speed, lower salt concentration and higher HLB value, would accelerate the degradation of supported liquid membrane. Other mechanisms including solubility and osmotic pressure work together to increase the membrane liauid loss.The instability mechanisms of the supported liquid membrane using Celgard 2500 membranes as support and tributyl phosphate dissolved in kerosene as carrier for phenol transport was studied by electrochemical impedance spectroscopy.Emulsion formation is demonstrated to be one of the main causes for the instability of supported liquid membrane in the present system.The emulsion-facilitated conditions,such as higher membrane liquid concentration,faster stirring speed,lower salt concentration and higher HLB value,would accelerate the degradation of supported liquid membrane.Other mechanisms including solubility and osmotic pressure work together to increase the membrane liquid loss.

关 键 词：supported liquid membrane PHENOL instability mechanisms emulsion formation 

分 类 号：TQ028.8[化学工程] O623.423[理学—有机化学]