化工进展2011，Vol.30Issue(6)：1237-1240,4.
NT-1和BCH催化剂在乙烯淤浆聚合中的催化性能
Performance of NT-1 and BCH catalysts in ethylene slurry polymerization
孟伟娟 1张欣 2李洪泊 2李建伟 2陈标华1
作者信息
- 1. 北京化工大学化工资源有效利用国家重点实验室,北京,100029
- 2. 中国石油化工股份有限公司北京化工研究院燕山分院,北京,102500
- 折叠
摘要
Abstract
The physical and structural properties of BCH and NT-1 industrial catalysts were characterized with XRD and BET. The effect of their structure on catalytic activity for ethylene slurry polymerization was investigated. It was found that BCH had a higher initial activity due to more macro-pores, which was in favor of the diffusion of ethylene. During the intermediate and final stage,the activity of BCH was lower than NT-1 because part of active sites were embedded by polymer. The product synthesized by NT-1 catalyst possessed bigger average particle size, narrower particle size distribution and better mechanical properties than that synthesized by BCH catalyst. However, the bulk density of polyethylene produced by NT-1 catalyst was slightly lower than that produced by BCH catalyst. NT-1 catalyst's sensitivity of hydrogen response and ability of copolymerization were better than those of BCH catalyst.关键词
乙烯/淤浆聚合/NT-1催化剂/BCH催化剂/性能Key words
ethylene/ slurry polymerization / NT-1 catalyst/ BCHcatalyst/ performance分类
化学化工引用本文复制引用
孟伟娟,张欣,李洪泊,李建伟,陈标华..NT-1和BCH催化剂在乙烯淤浆聚合中的催化性能[J].化工进展,2011,30(6):1237-1240,4.
