Preparation, characterization, and activity of α-Ti(HPO4)2 supported metallocene catalysts

被引：5

作者：

Shi, Yasai ^{[1
]}

Yuan, Yuan ^{[2
]}

Xu, Qinghong ^{[1
]}

Yi, Jianjun ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Box 98,15 Beisanhuan Donglu, Beijing 100029, Peoples R China

[2] PetroChina Co Ltd, Petrochem Res Inst, Beijing 102206, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2016年 / 383卷

基金：

中国国家自然科学基金;

关键词：

Support Metallocene catalysts; alpha-Ti(HPO4)(2); Acid sites; Alkenes polymerizations; OLEFIN POLYMERIZATION CATALYSTS; HETEROGENEOUS CATALYSTS; ETHYLENE POLYMERIZATION; SOLUBLE METALLOCENES; SULFATED ZIRCONIA; LEWIS-BASES; HYDROGENATION; COMPLEXES; ACIDS; IMMOBILIZATION;

D O I：

10.1016/j.apsusc.2016.04.123

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of heterogeneous catalysts by loading metallocenes on surface of alpha-Ti(HPO4)(2), a kind of solid acid, has been synthesized. Polymerization of alkenes, including ethylene and propylene, based on participation of the heterogeneous catalysts were studied and the results were compared to metallocenes supported on silica gel, alpha-Zr(HPO4)(2) and clay. Higher catalytic activity, larger polymer molecular weight and narrow distribution of polymer molecular weight were obtained. Acidic strength of the support and its influence to metallocenes were studied to discover intrinsic factors in the polymerizations. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：126 / 132

页数：7

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