LHQ-12负载型茂金属催化剂乙烯淤浆聚合  

Ethylene slurry polymerization with supported metallocene catalyst LHQ - 12

作　　者：崇雅丽[1,2] 韦少义 张鹏[2] 张平生 王海 乔彤森 

机构地区：[1]西北师范大学化学化工学院,甘肃兰州730070 [2]中国石油兰州化工研究中心,甘肃兰州730060

出　　处：《石化技术与应用》2013年第3期189-192,共4页Petrochemical Technology & Application

基　　金：中国石油炼化板块资助项目(项目编号:2012 B-2701-0334)

摘　　要：以乙烯为原料,采用自制负载型茂金属催化剂(牌号为LHQ-12),在反应压力为1 MPa,反应温度为(83±2)℃,反应时间为2 h的条件下,采用淤浆聚合法制备了聚乙烯。结果表明,LHQ-12与进口催化剂相比,粒径分布相似,聚合活性较高。当最佳氢气质量分数为300×10-6,最佳1-己烯/乙烯(摩尔比)为0.008时,聚合活性可达到4 000 g/g。Polyethylene was prepared on a home- made supported metallocene catalyst LHQ - 12 by slurry polymerization with ethylene and 1 -hexene as materials at reaction temperature （ 83 ± 2） ℃ , re- action pressure 1 MPa,reaction time 2 h. The results showed that compared with import catalyst, LHQ - 12 had similar particle size distribution and higher polymerization activity. The catalytic activity of the LHQ - 12 reached 4 000 g/g under the optimum con- ditions of the mass fraction of hydrogen 300 x 10-6 and 1 -hexene to ethylene mole ratio 0. 008.

关 键 词：负载型茂金属催化剂 乙烯 1-己烯 淤浆聚合 聚乙烯 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]