Study on fluorinated modified solid methylaluminoxane supported metallocene catalysts

化学工业与工程

Chemcial Industry and Engineering

2025, Vol. 42

Issue (2) :28-34 DOI: 10.13353/j.issn.1004.9533.20240107

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Study on fluorinated modified solid methylaluminoxane supported metallocene catalysts

DENG Xiuyuan¹, WANG Lijuan², JIANG Tao¹, LI Jian¹

1. College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin 300457, China;
2. Daqing Chemical Research Center, Petrochemical Research Institute, China National Petroleum Corporation, Daqing 163714, Heilongjiang, China

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Abstract In the field of metallocene catalyst polymerization of olefins, methylaluminoxane (MAO) is a common cocatalyst. Curing methylaluminoxane to form solid methylaluminoxane (sMAO) can play a dual role as a cocatalyst and carrier. In this study, sMAO is modified by adding different fluoroalkanes and fluoroaromatic compounds. Simultaneously, bis (1-butyl-3-methylcyclopentadienyl) zirconium dichloride was loaded onto a modified carrier as the active component of the metallocene to obtain a supported metallocene catalyst, which was used for ethylene slurry polymerization. Among them, using decafluorobiphenyl, perfluorohexane, and 1-hydroperfluorohexane as modifiers, and the activity of the prepared modified catalyst was 1.58×10⁶,1.42×10⁶ and 1.46×10⁶ g·mol^-1, showing 17% to 30% increase in activity compared to that before modification.

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	DENG Xiuyuan
	WANG Lijuan
	JIANG Tao
	LI Jian

Keywords： metallocene catalyst modifiers fluoroalkanes slurry polymerization solid methylaluminoxane

Received 2024-02-17;

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DENG Xiuyuan, WANG Lijuan, JIANG Tao, LI Jian.Study on fluorinated modified solid methylaluminoxane supported metallocene catalysts[J] Chemcial Industry and Engineering, 2025,V42(2): 28-34

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