应用化学 ›› 1997, Vol. 0 ›› Issue (1): 68-70.

• 研究论文 • 上一篇    下一篇

从混合离子中分离Fe、Al、Cd

邓凡政, 石影, 李霞, 陈岩   

  1. 淮北煤炭师范学院化学系 淮北 235000
  • 收稿日期:1996-04-23 修回日期:1996-07-01 出版日期:1997-02-10 发布日期:1997-02-10

Extraction Separation of Fe(Ⅲ), Al(Ⅲ)and Cd(Ⅱ)from Some Mixed Ions

Deng Fanzheng, Shi Ying, Li Xia, Cheng Yan   

  1. Department of Chemistry, Huaibei Coal Teachers College, Huaibei 235000
  • Received:1996-04-23 Revised:1996-07-01 Published:1997-02-10 Online:1997-02-10

摘要: 利用水溶性高聚物聚乙二醇在无机盐存在下可以分成两相的性质[1],选择常见的有机试 剂作为萃取剂,控制合适条件,Fe3+、 Al3+ 等离子与萃取剂形成稳定络离子被定量萃取到高聚 物相,而 Cu2+、Co2+、Ni2+、Cd2+ 等离子不被萃取留在下层萃余水相,从而可实现离子间的定量分离. 这种方法与传统的有机溶剂萃取分离法相比,具有不挥发、无毒、价廉、操作简便等优点,建立了一种新的萃取分离方法

关键词: 聚乙二醇, 萃取剂, 分离, 金属离子

Abstract: Conditions of phase separation in polyethylene glycol-salt-extractant two-phase aqueous systems and factors affecting extraction yield of metal ions were investigated. Results indicated that Fe(Ⅲ), Al(Ⅲ)and Cd(Ⅱ)were quantitatively separated from some mixed ions under suitable extraction conditions.

Key words: polyethylene glycol, extractant, separation, metal ion