NG催化剂的液相丙烯聚合动力学研究  

Liquid phase propylene polymerization dynamics by NG catalyst

作　　者：王路生[1] 陈江波[1] 杜亚锋[1] 陈明 杜改平 冯梓健 Wang Lusheng;Chen Jiangbo;Du Yafeng;Chen Ming;Du Gaiping;Feng Zijian(SINOPEC Beijing Research Institute of Chemical Industry,Beijing 100013,China)

机构地区：[1]中石化(北京)化工研究院有限公司,北京100013

出　　处：《合成树脂及塑料》2022年第3期8-12,共5页China Synthetic Resin and Plastics

摘　　要：采用单体补充法对NG催化剂的液相丙烯本体动力学行为进行了研究,重点研究了反应温度、氢气用量以及外给电子体对NG催化剂催化液相丙烯聚合动力学行为的影响。结果表明:反应温度由60℃升至80℃时,NG催化剂的初始阶段活性大幅增加,活性衰减速率加快;随着氢气用量的增加,NG催化剂的活性增加,增加速率逐渐减慢;外给电子体采用二异丁基二甲氧基硅烷时,最大反应速率更高,催化剂活性的提高更显著。Liquid phase propylene polymerization dynamics by NG catalyst was studied by compensation dilatometry method.The effects of reaction temperature,hydrogen injection and external electric donor on kinetics behavior of NG catalyst in liquid phase propylene polymerization were observed.The results show that the activity of NG catalyst soars at the initial stage when reaction temperature is increased from 60℃to 80℃,while its attenuation accelerates.The activity of the catalyst rises following the concentration of hydrogen,but its increase rate slows gradually.The reaction rate is the fastest and activity of the catalyst is improved significantly with diisobutyl dimethoxy silane as external electric donor.

关 键 词：丙烯聚合 单体补充法 NG催化剂 动力学行为 外给电子体 

分 类 号：TQ316.2[化学工程—高聚物工业]