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化学学报
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化学学报 ›› 2011, Vol. 69 ›› Issue (22): 2751-2754. 上一篇    

研究简报

硫代杯[6]芳烃衍生物从汽车尾气净化催化剂残渣中选择性识别贵金属离子的研究

李春斌，岳玉莲，王剑锋，陈会英，范圣第*   

  1. (大连民族学院生命科学学院 国家民委-教育部生化工程重点实验室 大连 116600)
  • 投稿日期:2011-03-22 修回日期:2011-05-11 发布日期:2011-07-04
  • 通讯作者: 李春斌 E-mail:lcb@dlnu.edu.cn
  • 基金资助:

    生物体系外表达跨膜细胞信号转导机能的超分子研究

Selective Recognition of Precious Metals From Automotive Catalyst Residue by Thiacalix[6]arene Derivative

LI Chun-Bin, YUE Yu-Lian, WANG Jian-Feng, CHEN Hui-Ying, FAN Sheng-Di   

  1. (College of Life Science, Dalian Nationalities University, Key Laboratory of Biological Chemistry Engineering-The State Ethnic Affairs Commission-Ministry of Education, Dalian 116600)
  • Received:2011-03-22 Revised:2011-05-11 Published:2011-07-04

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897

被引次数

2

以对叔丁基硫代杯[6]芳烃(p-tert-butyl-thiacalix[6]arene, TC6A)为底物, 对其上缘进行脱叔丁基、氯甲基化反应后, 在无水N,N-二甲基甲酰胺(DMF)溶液中将氯甲基化的硫代杯[6]芳烃与硫代乙酸钾进行反应合成了一种新的TC6A衍生物——乙酰硫甲基硫代杯[6]芳烃(TC6A-CH2SCOCH3). 对含有铂族金属离子的车用尾气净化催化剂残渣溶液进行萃取研究表明, 在pH为1.5的萃取液中TC6A-CH2SCOCH3对其中的钯离子具有最高的选择性萃取能力, 萃取率可达86.2%,在pH为4.0的萃取液中对锆离子具有第二高的选择性萃取能力, 萃取率可达57.3%.

关键词: 杯芳烃, 硫代杯芳烃, 合成, 萃取, 贵金属

A new derivative matter acetylthiomethylthiacalix[6]arene (TC6A-CH2SCOCH3) has been synthesized by modified the upper rims of p-tert-butylthiacalix[6]arene (TC6A) in anhydrous DMF. The metal extraction properties of TC6A-CH2SCOCH3 from automotive catalyst residue solution containing platinum-group metal (PGM) cations have been investigated. It shows that the highest extractability for Pd and second highest one for Zr are ca. 86.2% (in pH 1.5 PGM solution) and 57.3% (in pH 4.0 PGM solution) respectively.

Key words: calix[n]arenes, thiacalix[n]arenes, synthesis, extraction, precious metal

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