Extraction of copper with p-tert-butyl-calixarenes

• 来源期刊: 中国化学(英文版)
• 年，卷（期）: 2000,（6）
• 所属期刊栏目: Articles
• 页码范围: 838-841
• 页数: 4页
• 语种: 英文

摘要

The extracion of copper with calixarenes was researched by comparing the results from calix[4]-, calix[6]- and calix[8]-arenes. The extraction ability increased as the order: calix [4]- ＞ calix[8]- ＞ calix[6]-arenes, with the binding ratio being 1:1. The extraction mechanism was also discussed, and its Kequation Cu(NH3)42+ + H2L(0) Cu(NH3)4L(0) + 2H + and the extraction equilibrium constants (Kex) for calix[6]- and calix[8]-arenes were obtained respectively.