| 一种新型脱卤催化剂水相催化芳香卤化物脱卤 |
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| 引用本文： | 董玉环,孟庆朝,刘立华,周长山. 一种新型脱卤催化剂水相催化芳香卤化物脱卤[J]. 化学世界, 2004, 45(12): 650-653 |
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| 作者姓名： | 董玉环 孟庆朝 刘立华 周长山 |
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| 作者单位： | 唐山师范学院化学系,河北,唐山,063000;唐山师范学院化学系,河北,唐山,063000;唐山师范学院化学系,河北,唐山,063000;唐山师范学院化学系,河北,唐山,063000 |
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| 摘 要： | 把起相转移作用的聚乙二醇键合到蒙脱土上(MontK10-PEG400),再将聚乙烯吡咯烷酮(PVP)配合双金属Pd-Sn(PVP-PdCl2-SnCl4)后负载其上,制成一种新型双负载双金属水相脱卤催化剂PVP-PdCl2-SnCl4/MontK10-PEG400,以甲酸钠为氢转移试剂,在水相中催化芳香卤化物脱卤,结果表明:反应温度为80°C,Pd∶Sn=4∶1(摩尔比)时,该催化剂对芳香氯化物呈现出高的脱氯活性和选择性。芳香氯化物转化率达100%。此催化剂易于制备并具有良好的重复使用性。
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| 关 键 词： | 水相脱卤 水污染 芳香氯化物 催化剂 |
| 文章编号： | 0367-6358(2004)12-650-04 |
A Novel Catalyst for Dehalogenation of Aromatic Halides in Water |
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| DONG Yu-huan,MENG Qing-zhao,LIU Li-hua,ZHOU Chang-shan. A Novel Catalyst for Dehalogenation of Aromatic Halides in Water[J]. Chemical World, 2004, 45(12): 650-653 |
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| Authors: | DONG Yu-huan MENG Qing-zhao LIU Li-hua ZHOU Chang-shan |
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| Abstract: | Based on polyvinylpyrrolidone(PVP)-archored Pd-Sn complex(PVP-PdCl_2-SnCl_4) and MontK10 functionalized by the use of polyethylene glycol(PEG),a novel dually supported bimetallic dehalogenation catalyst PVP-PdCl_2-SnCl_4/MontK10-PEG,was prepared.It showed high activity and selectivity for dechlorination of aromatic chlorides in water,when sodium formate was used as hydrogen donor the reacting temperature was (80°C) and the Pd∶Sn molar ratio was 4∶1.The conversion of aromatic chlorides can reach 100%.The catalyst is easy to prepare and has good reusability. |
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| Keywords: | dehalogenation in aqueous system water pollution aromatic chlorides catalyst |
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