摘要
本文探讨了用乳状液膜从水溶液中提取Co(11),Ni(11)的配位效应,同时研究了表面活性剂种类、载体种类、温度对提取效果的影响。实验表明在外相水溶液中加-入某些配体时可使提取速度及提取率都大大增加,也就是说配位效应影响了液膜的稳定性,改变了液膜提取的动力学过程。
This paper discusses not only the effect of different ligands on the kinetics of extraction of Co(11),Ni(11)from Aqueous solution with emulsion liquid membrane,but also the factors of influenceon the extraction efficiency:types of surfactant and ion-changer and temperature.The appropriate liq-uid membrane system,span 80 P_(204)-Kerosene-H_2SO_4,has been obtained.The test shows clearly that theextraction rate and efficiency of Co(11) and Ni(11)are greatly increased,when the liands are addedto the external aqueous phase.This shows that the effect of complexation on the extraction of metal byemulsion liquid membrane influences the kinetics process.
出处
《膜科学与技术》
CAS
CSCD
1991年第1期102-107,共6页
Membrane Science and Technology
