PVP-柱撑蒙脱土双负载双金属催化芳香卤化物的水相脱卤  

Hydrogen Transfer Dehalogenation of Organic Halides Catalyzed by PVP-Mont Dually Supported Pd-Fe Catalyst in Aqueous System

作　　者：郑二丽[1] 杨富兴[2] 郑学忠[3] 

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018 [2]河北师范大学设备处,河北石家庄050016 [3]河北师范大学化学与材料科学学院,河北石家庄050016

出　　处：《河北师范大学学报（自然科学版）》2007年第6期780-783,共4页Journal of Hebei Normal University：Natural Science

摘　　要：采用高聚物聚乙烯吡咯烷酮(PVP)和支载了聚乙二醇(PEG)活性链的蒙脱土(CLM)为载体,支载PdCl2-FeSO4,制备了新型催化剂PVP-PdCl2-FeSO4/Al-CLM-PEG,催化剂在水相中对芳香氯化物脱卤具有较高的催化活性和选择性,而且易分离和再生.考察了甲酸钠用量、反应温度和反应时间对催化剂催化活性的影响.The novel catalyst was prepared, PVP-PdCl2- FeSO4/A1-CLM-PEG, PVP （polyvinylpyrrolidone）-supported bimetallic Pd-Fe and pillared rnontmorillonite function-allied by PEG（polyethylene glycol）. It was shown that the catalyst had high activity and selectivity in water phase and could be easily separated and reused. The amount of HCOONa and reaction temperature and reaction time had a great influence on catalytic activity of the catalyst for dechlorination of aromatic chlorides.

关 键 词：PVP CLM 芳香卤化物 水相脱卤 

分 类 号：O643[理学—物理化学]