| 双负载双金属催化剂催化有机卤化物水相脱卤研究 |
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| 引用本文： | 欧阳兴梅,康汝洪,韩建荣,甄小丽.双负载双金属催化剂催化有机卤化物水相脱卤研究[J].环境化学,2001,20(1):7-11. |
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| 作者姓名： | 欧阳兴梅 康汝洪 韩建荣 甄小丽 |
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| 作者单位： | 1. 河北师范大学化学系,
2. 河北科技大学基础部, |
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| 基金项目： | 河北省自然科学基金资助课题 |
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| 摘 要： | 通过把起相转移作用的聚乙二醇链固载在硅胶上（SiO2-PEG600），再将聚乙稀吡咯烷酮（PVP）络合双金属Pd-Cu(PVP-PdCl2-CuCl2)后负载其中，制成一种新型双负载双金属水相脱卤催化剂PVP－PdCl2-CuCl2/SiO2-PEG600。以甲酸钠为氢转移试制，在水相中催化有机卤化物脱卤，研究结果表明：反应温度为800℃，Pd∶Cu=2∶1（摩尔比），反应介质pH≈11.7左右时，该催化剂对芳香氯化物及α－氯代酮、酯具有良好的催化脱氯和重复使用性能。
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| 关 键 词： | 脱卤 水污染 有机卤化物 相转移催化剂 双负载双金属催化剂 |
STUDY ON DEHALOGENATION OF ORGANIC HALIDE IN WATER CATALYZED BY A NEW CATALYST CONSISTING OF BIMETALLIC SYSTEM AND TWO CARRIERS |
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| Ouyang Xingmei,Kang Ruhong,HAN Jianrong,Zhen Xiaoli.STUDY ON DEHALOGENATION OF ORGANIC HALIDE IN WATER CATALYZED BY A NEW CATALYST CONSISTING OF BIMETALLIC SYSTEM AND TWO CARRIERS[J].Environmental Chemistry,2001,20(1):7-11. |
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| Authors: | Ouyang Xingmei Kang Ruhong HAN Jianrong Zhen Xiaoli |
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| Abstract: | A ncw catalyst,PVP-PdCl2-CuCl2/SiO2-PEG 600,was prepared by interaction of carrier of polyethylene glycol(PEG),which is used to phase transfer,supported on silica gel and polyvinylpyrrolidone(PVP)-PdCl2-CuCl2 complex.In water,this catalyst,in which the Pd/Cu molar ratio was 2/1,has shown good activities for dehalogenation of aromatic chloride and α-haloketone and α-haloester,which occured at 80℃ in the presence of reducing agent sodium formate and basic media(pH≈11.7),and can be repeatedly used without obvious decrease in activity. |
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| Keywords: | dehalogenation water pollution organic halide phase transfer catalyst |
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