节点文献
用双硫腙作为流动载体的乳状液膜迁移Pb2+、Zn2+、Cu2+的研究
Studies on Transport of Lead( Ⅱ ), Zinc( Ⅱ ) and Copper ( Ⅱ ) in Dithizone-Mediated Emulsion Liquid Membrane System
【摘要】 <正> 乳状液膜分离技术已经在许多领域中应用,在液膜中加入流动载体,可促进物质的迁移.本文从萃取剂中筛选出来双硫腙,可作为铅、铜离子迁移的优良流动载体.用双硫腙-Span 80-甲苯的乳状液膜体系,在20~30min试验中,铅、铜的迁移率均接近100%,而在同样条件下,锌不迁移,因此,用该乳状液体系可分离铅、铜和锌.
【Abstract】 The transport of lead( Ⅱ ), zinc( Ⅱ ) and copper( Ⅱ ) in dithizone-mediated emulsion liquid membrane system was studied. The transporting behavior of lead( Ⅱ ) in the liquid membrane system is reported in detail. Because of the selectivity of dithizone. the separating of lead ( Ⅱ ) from zinc( Ⅱ ), copper ( Ⅱ ) from zinc( Ⅱ ) can be completed by using this liquid membrane system.
【关键词】 乳状液膜;
双硫腙;
迁移;
分离;
金属离子;
【Key words】 Emulsion liquid membrane; Dithizone; Transport; Separation; Metal ions;
【Key words】 Emulsion liquid membrane; Dithizone; Transport; Separation; Metal ions;
【基金】 国家自然科学基金
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,1992年02期
- 【被引频次】5
- 【下载频次】57