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Effect of the physicochemical properties of SiO2 on performance of supported metallocene catalyst

  • Catalysis, Reaction Engineering
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Abstract

The effect of the calcination temperature of SiO2 on ethylene polymerization behavior was studied with supported metallocene catalysts. The concentration of hydroxyl group on the SiO2 surface was measured through FT-IR, thermogravimetry, and trimethylaluminium titration method. In addition, physical properties such as particle morphology, surface area, and pore characteristics were analyzed through BET, and SEM. (n-BuMeCp)2ZrCl2 was supported on the SiO2, which was calcined at different temperatures in the range of 100 and 900 °C. The resulting supported catalyst was applied to ethylene homopolymerization and ethylene-1-hexene copolymerization at 80 °C and 20 bar, showing that the lower calcination temperature resulted in higher activity due to the larger Zr and Al loadings.

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Acknowledgements

This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (2016R1D1A1B01009941) and by the research grant of the Kongju National University in 2020.

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  1. Department of Chemical Engineering, Kongju National University, 1223-24 Cheonan-daero, Seobuk-gu, Cheonan, 31080, Korea

    Hyeok Jae Yoo & Young Soo Ko

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  1. Hyeok Jae Yoo
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  2. Young Soo Ko
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Correspondence to Young Soo Ko.

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Yoo, H.J., Ko, Y.S. Effect of the physicochemical properties of SiO2 on performance of supported metallocene catalyst. Korean J. Chem. Eng. 39, 1762–1767 (2022). https://doi.org/10.1007/s11814-022-1097-0

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  • DOI: https://doi.org/10.1007/s11814-022-1097-0

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