PMBP缩2-氨基苯并噻唑席夫碱/离子液体双水相体系萃取废水中重金属离子的研究

来源期刊：冶金分析2010年第5期

论文作者：陈莉莉 邱祖民 黄金莲 徐礼峰

文章页码：33 - 37

关键词：离子液体； 1-苯基-3-甲基-4-苯甲酰基-吡唑啉酮-5缩2-氨基苯并噻唑席夫碱(PMBP-2-ABT)； 重金属离子； 双水相

Key words：ionic liquid； Schiff base derived from 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone and 2-amino-benzothiazole(PMBP-2-ABT)； heavy metal ions； binary-water phase

摘    要：合成了新型萃取剂1-苯基-3-甲基-4-苯甲酰基-吡唑啉酮-5缩2-氨基苯并噻唑席夫碱(PMBP-2-ABT),并以其为萃取剂,建立了一种用PMBP-2-ABT/离子液体双水相体系萃取重金属离子的新方法。考察了影响萃取效果的各种因素,如金属离子种类、pH值、萃取剂浓度等。结果表明:该萃取体系对重金属离子的萃取能力由强到弱的顺序为:Cu²⁺、Pb²⁺、Co²⁺、Ni²⁺、Zn²⁺;离子液体双水相体系中PMBP-2-ABT是萃取重金属离子的良好萃取剂。

Abstract: A novel Schiff base extracting agent (PMBP-2-ABT) was synthesized from 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (PMBP) and 2-amino-benzothiazole (2-ABT).A new method was established for the extraction of heavy ions by PMBP-2-ABT/ionic liquid binary-water phase system.Various factors influencing the extraction results were investigated,including the category of heavy metal ion,pH and the concentration of extracting agent.The results showed that the descending order of the extraction of heavy metal ions in this system was as follows: Cu²⁺,Pb²⁺,Co²⁺,Ni²⁺ and Zn²⁺.In ionic liquid binary-water phase system,PMBP-2-ABT was an excellent extracting agent for heavy metal ions.