模版法制备规整硅胶微球用于负载茂金属催化剂的研究  

Preparation of Regular Silica Gel Microspheres by Template Method and Its Application in Supporting Metallocene Catalyst

作　　者：王立娟[1] 陈天宇 谷勇耀 杨琦[1] 姜涛 李健 Wang Lijuan;Chen Tianyu;Gu Yongyao;Yang Qi;Jiang Tao;Li Jian(Daqing Chemical Research Center,Petrochemical Research Institute,China National Petroleum Corporation,Heilongjiang,163714;College of Chemical Engineering and Materials Science,Tianjin University of Science&Technology,Tianjin,300457)

机构地区：[1]中国石油天然气股份有限公司石油化工研究院大庆化工研究中心,黑龙江163714 [2]天津科技大学化工与材料学院,天津300457

出　　处：《当代化工研究》2025年第4期87-89,共3页Modern Chemical Research

基　　金：中石油集团公司关键核心攻关基金项目“聚乙烯茂金属催化剂制备及应用技术开发”(项目编号:2022GJ17)。

摘　　要：以种子诱导模版法合成制备了球形度高、粒径分布均一硅胶微球。硅胶微球具有相近的比表面积(280~300 m^(2)·g^(-1)),粒径大小在5~25μm之间且可精确分级调控。以硅胶为载体制备得到负载型茂金属催化剂。结果表明,作为载体的硅胶粒径越小,所得催化剂的活性越高,而粒径对聚合物的分子量分布影响较小。Silica gel microspheres with high sphericity and uniform particle size distribution were synthesized by seed-induced template method.Silica gel microspheres have similar specific surface area(280~300 m^(2)·g^(-1)),particle size between 5~25μm,and can be accurately graded and regulated.The results showed that the smaller the particle size of silica gel as a carrier,the higher the catalyst activity,and the particle size had little effect on the molecular weight distribution of the polymer.

关 键 词：茂金属聚乙烯 催化剂 硅胶 

分 类 号：TQ42[化学工程]