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.
出处
《石化技术与应用》
CAS
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)
关键词
负载型茂金属催化剂
乙烯
1-己烯
淤浆聚合
聚乙烯
supported metallocene catalyst
ethylene
1 - hexene
slurry polymerization
polyethylene
