石油化工2016，Vol.45Issue(8)：936-939,4.DOI:10.3969/j.issn.1000-8144.2016.08.008
高活性高氢调性能乙烯聚合用Ziegler-Natta催化剂
A Ziegler-Natta catalyst with high activity and high hydrogen sensitivity for ethylene polymerization
张磊 1王世波 1周俊领 1周歆 1吕新平1
作者信息
- 1. 中国石化 北京化工研究院，北京 100013
- 折叠
摘要
Abstract
A Ziegler-Natta catalyst(BCN) with MgCl2 as support and TiCl4 as main part of the catalyst for ethylene polymerization was prepared by the addition of a modifier. The chemical composition and morphology of the BCN catalyst were characterized by means of titration, spectrophotometer and SEM. The results showed that,Ti content in the BCN catalyst with sphere-like morphology was high up to 8.9%(w),the average particle size was 6.28 µm and its distribution was narrow. The hydrogen sensitivity of the BCN catalyst was studied. It was indicated that,the BCN catalyst had high activity and high hydrogen sensitivity in the slurry polymerization of ethylene. When p(H2)∶p(C2H4) was between (0.28∶0.45)-(0.68∶0.05),the melt index(10 min) of the product polyethylene(PE) was adjustable between 0.91-1 000 g. The particle size distribution of the product PE synthesized was narrow,which was beneficial to steady long period running of PE plants.关键词
Ziegler-Natta催化剂/聚乙烯/氢调性能/乙烯聚合Key words
Ziegler-Natta catalyst/polyethylene/hydrogen sensitivity/ethylene polymerization分类
化学化工引用本文复制引用
张磊,王世波,周俊领,周歆,吕新平..高活性高氢调性能乙烯聚合用Ziegler-Natta催化剂[J].石油化工,2016,45(8):936-939,4.
