摘要
在大环多元醚应用方面,实现了以DB-18-C-6为载体,乳化液膜法分离钾、钠离子的工艺.实验结果表明,内水相试剂、外水相中阴离子的性质、膜相溶剂以及冠醚与金属阳离子的匹配均对乳化液膜的提取效果有极大的影响.扩散控制的传质模型与实验结果有较好的一致性.
By using DB-18-C-6 as a carrier, K+ and Na+ were separated by emulsion liquid membrane. Such a liquid membrane system has evolved to a practical stage in a new area of the application of macrocyclic ether.
Experimental results showed that the extractibility of emulsion liquid membrane depended on the reagent in the inner aqueous phase, the anion in the outer aqueous phase, membrane solvent, and the crown ether's pairing with the metal cation. A mass transfer model of diffusion was proposed and agreed with the experimental results well.
出处
《化工学报》
EI
CAS
CSCD
北大核心
1992年第1期75-81,共7页
CIESC Journal
