Can I read Comparison of Support Effects on Phillips and Metallocene Catalysts on EtoBox?

Comparison of Support Effects on Phillips and Metallocene Catalysts by Yang, Qing (author);McDaniel, Max Paul (author) is a scholarly article available to read on EtoBox.

What is Comparison of Support Effects on Phillips and Metallocene Catalysts about?

Both metallocene and Phillips chromium catalysts are used in the commercial manufacture of polyethylene. Unlike most other commercial metallocene systems, the Chevron Phillips Chemical (CPC) platform does not use methylaluminoxane or fluoroorganic boranes. Instead, the support itself serves to activate (ionize) the metallocenes, which then polymerize ethylene at high activity. Most of these solid acid supports can also be used to anchor Cr to make a Phillips catalyst. This provides an interesting opportunity to compare the polymerization responses by these two disparate systems, Phillips Cr and CPC metallocene, when supported on the same solid acid carriers. In this study, both chromium oxide and several metallocenes were deposited onto a variety of solid oxides, under a variety of conditions, and the resulting support effects were observed and compared. Although using seemingly different chemistries, the two catalyst systems exhibited a surprising number of similarities, which can be attributed to the acidity and porosity of these diverse supports.

Author

Yang, Qing (author);McDaniel, Max Paul (author)

Publisher

MDPI AG

Published

2021

Language

EN