节点文献
杯[8]芳烃萃取稀土金属离子的研究
Study on extraction and separation of rare earth metal ions by calix[8]arene
【摘要】 合成了对叔丁基杯[8]芳烃,研究了其对稀土金属钕、铕、镨离子(Nd3+、Eu3+、Pr3+)在溶液中的萃取。测定了在25℃,离子强度I=0.1g/mol时Nd3+、Eu3+、Pr3+的萃取平衡常数。探讨了杯[8]芳烃萃取分离这3种稀土金属离子的条件、萃取反应机理及其规律性。
【Abstract】 The calix[8]arene was synthesized and the extraction of rare earth metal ions Nd3+,Eu3+,Pr3+ in solution with calix[8]arene was studied.The extraction equilibrium constants of Nd3+,Eu3+,Pr3+ on the condition of temperature 25℃ and ion strength I=0.1g/mol,were determined.The factors of extraction for these three rare earth metal ions and extraction mechanism as well as rule were discussed.
【关键词】 杯[8]芳烃;
稀土金属;
离子强度;
萃取平衡常数;
【Key words】 Calix[8]arene; Rare earth metal ions; Ion strength; Extraction equilibrium constants;
【Key words】 Calix[8]arene; Rare earth metal ions; Ion strength; Extraction equilibrium constants;
【基金】 南京大学配位化学国家重点实验室开放基金资助项目。
- 【文献出处】 化工科技 ,Science & Technology In Chemical Industry , 编辑部邮箱 ,2004年06期
- 【分类号】O658.2
- 【被引频次】5
- 【下载频次】186