石油化工2017，Vol.46Issue(4)：422-426,5.DOI:10.3969/j.issn.1000-8144.2017.04.005
邻苯二甲酸二异丁酯用量对新型载体催化剂性质和性能的影响
Influences of diisobutyl phthalate dosage on the performances of catalysts with a novel support for propylene polymerization
凌永泰 1夏先知 1刘月祥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 novel support was prepared from stearyl alcohol and 2,2-dimethoxypropane through the chemical reaction between epichlorohydrin and the adduct of magnesium dichloride and alcohol.Then several catalysts were prepared with different dosage of diisobutyl phthalate(DIBP) as the internal electron donor.The effects of the DIBP dosage on the chemical composition and catalytic performances of the catalysts were investigated by means of FTIR,XRD and XPS.The results showed that the contents of both the internal electron donor and Ti in the catalysts were influenced by the DIBP dosage.With increasing the DIBP dosage,the Ti content firstly dropped from 7.4％(w) to the lowest point(3.8％(w)) and then slightly increased.The performances of the catalysts in propylene polymerization were also influenced by the DIBP dosage and the highest activity was achieved when the DIBP dosage was 5.2 mmol.In addition,the degree of crystallinity of the catalysts increased with increasing the DIBP dosage.关键词
载体/氯化镁/聚丙烯催化剂/丙烯聚合/邻苯二甲酸二异丁酯Key words
support/magnesium dichloride/polypropylene catalyst/propylene polymerization/diisobutyl phthalate分类
化学化工引用本文复制引用
凌永泰,夏先知,刘月祥..邻苯二甲酸二异丁酯用量对新型载体催化剂性质和性能的影响[J].石油化工,2017,46(4):422-426,5.
