摘要
研究了Ｃｄ（Ⅱ）在三正辛胺－二甲苯支撑液膜体系中的迁移规律．结果表明，载体三正辛胺浓度显著影响Ｃｄ（Ⅱ）的渗透系数Ｐ．料液中Ｈ＋浓度、Ｃｄ（Ⅱ）浓度和膜溶剂对Ｃｄ（Ⅱ）的迁移有影响．在此液膜体系中反萃剂醋酸铵比氢氧化钠好，温度升高能提高Ｃｄ（Ⅱ）的迁移速率．
The effects of carrier concentration, H+ concentration and Cd() concentration in feed solution, membrane solvent, stripping agent and temperature on the transport of Cd() ions through a TNOA-xylene supported liquid membrane were studied. The permeability coefficient, P(cm/s) of Cd() ions through the supported liquid membrane has been measured. The results show that the Cd() ions in feed solution is effeciently transported into the strip solution by the tri-n-octyl amine-xylene based supported liquid membranes.
出处
《膜科学与技术》
CAS
CSCD
1999年第2期45-48,共4页
Membrane Science and Technology
关键词
三正辛胺
支撑液膜
二苯
萃取
镉
废水处理
cadmium ionstri-n-octyl amine(TNOA)supported liquid membranestudy on a new technology for preparing emulsionsmembrane emulsificationWang Zhi, Wang Shichang (Chemical Engineering Research Center, Tianjin University, Tianjin300072) V.Schroeder, H. Schubert
