官能化蒙脱土负载双金属催化芳香氯化物水相脱氯  

Study on dechlorination of aromatic chlorides in aqueous system catalyzed by functionalized MontK10 supported bimetal

作　　者：董玉环[1] 孟庆朝[1] 周长山[1] 

机构地区：[1]唐山师范学院化学系,河北唐山063000

出　　处：《化学研究与应用》2003年第2期203-206,共4页Chemical Research and Application

基　　金：河北省教委资助项目(2000254)

摘　　要：用PVP(聚乙烯吡咯烷酮)络合双金属Pd2+、Sn4+后,再负载于用PEG400(平均分子量为400的聚乙二醇)官能化的蒙脱土上,制成双金属催化剂PVP-PdCl2-SnCl4/Montk10-PEG400,用于催化难溶于水的芳香卤化物水相脱卤,芳香族氯化物转化率达100%,该催化剂可重复使用。对催化剂进行了IR及TEM表征。Bisupporter bimetal catalyst PVPPdCl2SnCl4/Montk10PEG400 was prepared through anchoring bimetal Pd2+ and Sn4+ on PVP(poly(Nvinyl2pyrrolidone))and then supporting them on MontK10 functionalized by PEG400(polyethylene glycol with average molecular weight 400).The catalyst was used for dehalogenation of insoluble aromatic halides in aqueosus system,and showed high dechlorination activity and selectivity for aromatic chlorides.The conversion of aromatic chlorides can reach 100%.The catalyst was easy to prepare and showed good reusablitity.The effect in catalyzed dehologenation reaction of each composition in catalyst was discussed by IR spectra analysis.

关 键 词：官能化蒙脱土 负载双金属催化剂 芳香卤化物 水相脱卤 水相脱氯 聚乙烯吡咯烷酮 

分 类 号：O625.2[理学—有机化学] O643.36[理学—化学]