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Performance of various aluminoxane activators in ethylene tetramerization based on PNP/Cr(III) catalyst system

Paper ID Volume ID Publish Year Pages File Format Full-Text
52680 46880 2007 4 PDF Available
Title
Performance of various aluminoxane activators in ethylene tetramerization based on PNP/Cr(III) catalyst system
Abstract

Ethylene tetramerization with PNP/Cr(III)/aluminoxanes was investigated. By comparing catalytic activity, selectivity to 1-octene and selectivity to methylenecyclopentane in ethylene tetramers, the effects of various aluminoxanes on ethylene tetramerization were discussed. The results showed that MMAO(TMA-depleted), MAO and EAO were all effective cocatalyst for ethylene tetramerization toward 1-octene. PNP/Cr(III)/MMAO catalytic systems afford the highest catalytic activity and the highest selectivity to 1-octene. The selectivities to methylenecyclopentane was decreased by using i-BAO and EAO as cocatalyst, which indicated that different mechanism for ethylene tetramerization has been occurred in such cases.

Keywords
Ethylene tetramerization; 1-Octene; Aluminoxane; Cocatalyst
First Page Preview
Performance of various aluminoxane activators in ethylene tetramerization based on PNP/Cr(III) catalyst system
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 7, July 2007, Pages 1145–1148
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis