๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Spherical MgCl2 Supported Iron Catalyst for Ethylene Polymerization: Effect of the Preparation Procedure on Catalyst Activity and the Morphology of Polyethylene Particles

โœ Scribed by Rubin Huang; Dongbing Liu; Shibo Wang; Bingquan Mao

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
186 KB
Volume
205
Category
Article
ISSN
1022-1352

No coin nor oath required. For personal study only.

โœฆ Synopsis

Abstract

Summary: A new procedure was developed to support [(ArN๏ฃพC(Me))~2~C~5~H~3~N]FeCl~2~ (Ar๏ฃพ2,4,6โ€trimethylphenyl) on spherical MgCl~2~ for ethylene polymerization. The resultant catalysts showed ten times higher activity of the corresponding catalyst in homogeneous catalysis. The morphologies of polyethylene particles strongly depended on supported catalyst preparation procedure and polymerization conditions. In addition, the GPC measurements showed bimodal polyethylene for the homogeneous polymerization while monoโ€modal polyethylene of those supported catalysts.

EDX Line Scan analysis of the catalyst SMSICโ€1 regarding the aluminium and iron distribution in the volume (25 kV accelerating voltage, magnification 1โ€‰500).

imageEDX Line Scan analysis of the catalyst SMSICโ€1 regarding the aluminium and iron distribution in the volume (25 kV accelerating voltage, magnification 1โ€‰500).

๐Ÿ“œ SIMILAR VOLUMES

MAO-Free Activation of Metallocenes and
MAO-Free Activation of Metallocenes and other Single-Site Catalysts for Ethylene Polymerization using Spherical Supports based on MgCl2
โœ John R. Severn; John C. Chadwick ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 162 KB ๐Ÿ‘ 1 views

## Abstract Summary: Supports of type MgCl~2~/AlR~__n__~(OEt)~3โˆ’__n__~, obtained by reaction of AlR~3~ with adducts of MgCl~2~ and ethanol, have been shown to be effective for the immobilization and activation of [Cp~2~TiCl~2~] and other singleโ€site olefin polymerization catalysts without the use o

MgCl2-supported catalysts for the propyl
MgCl2-supported catalysts for the propylene polymerization: effects of triethers as internal donors on the activity and stereoselectivity
โœ Daniele Fregonese; Vito Di Noto; Arnaldo Peloso; Silvano Bresadola ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 68 KB ๐Ÿ‘ 2 views

The effects of triethers as internal donors on the activity and stereoselectivity of MgCl 2 -supported Ziegler-Natta type catalysts in the propylene polymerization were studied. In particular, we prepared and fully characterized some procatalysts of the type d-MgCl 2 /ID/TiCl 4 , where ID are intern