fulltext.study @t Gmail

Ethylene polymerization over zirconocenes supported on alumina- and titania-based acidic oxides

Paper ID Volume ID Publish Year Pages File Format Full-Text
52791 46887 2007 3 PDF Available
Title
Ethylene polymerization over zirconocenes supported on alumina- and titania-based acidic oxides
Abstract

Ethylene polymerization was performed using bis(n-butylcyclopentadienyl)zirconium dichloride ((n-BuCp)2ZrCl2) supported on alumina- and titania-based acidic oxides (Al2O3, TiO2, AlPO4, TiO2–Al2O3, SiO2–Al2O3, TiO2–SiO2 and H–Y zeolite) in the presence of triisobutylaluminum. These oxides were also tested in an isopropylbenzene cracking reaction to determine their acid properties. Among the catalysts, AlPO4-supported (n-BuCp)2ZrCl2 showed the highest polyethylene productivity, but AlPO4 was inactive in the cracking reaction. FT-IR spectra of pyridine-adsorbed AlPO4 and Al2O3 indicated that the acid sites do not participate in active-site formation. It is possible that the metallocene is activated on sites formed by the reaction of characteristic OH groups of AlPO4 with triisobutylaluminum.

Keywords
Metallocene catalyst; Ethylene polymerization; Aluminum phosphate; Acidic oxide
First Page Preview
Ethylene polymerization over zirconocenes supported on alumina- and titania-based acidic oxides
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 1, January 2007, Pages 36–38
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us