氯化石蜡-70脱氯制备石蜡烯及性能表征  

Preparation and characterization of polyynes via dehydrochlorination of chlorinated paraffins-70

作　　者：杜湖泽 常群羚 王胜杰[1] 李春喜[1] 

机构地区：[1]北京化工大学化学工程学院,北京100029

出　　处：《化工进展》2013年第12期2842-2845,2851,共5页Chemical Industry and Engineering Progress

摘　　要：通过氯化石蜡70(CP-70)在NaOH乙醇溶液中的脱氯反应制得了石蜡烯,并对产品的氯含量、双键值和结构分别采用离子色谱、碘量法和红外光谱法进行了分析和表征。研究发现,NaOH浓度增加、温度上升和反应时间延长有助于提高脱氯反应的程度;碘量法和红外光谱的分析结果表明,在较高温度下制得的石蜡烯含有更多的共轭双键和三键。Polyynes was obtained through dehydrochlorination of chlorinated paraffins-70 （CP-70） in an alcohol solution of sodium hydroxide. The as-prepared polyynes were analyzed and characterized with respect to chlorine content,double bond value and chain structure by using ionic spectroscopy, iodometry , and IR spectroscopy. The dechlorization reaction was favored by increasing NaOH concentration,higher temperature and longer reaction time. Moreover,the polyynes prepared at a higher temperature contained more conjugated double bonds and triple bonds.

关 键 词：氯化石蜡-70 脱氯 石蜡烯 离子色谱 

分 类 号：TQ222.4[化学工程—有机化工]