Korean Journal of Chemical Engineering, Vol.39, No.7, 1762-1767, 2022
Effect of the physicochemical properties of SiO2 on performance of supported metallocene catalyst
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 FTIR, 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℃. The resulting supported catalyst was applied to ethylene homopolymerization and ethylene-1-hexene copolymerization at 80℃ and 20 bar, showing that the lower calcination temperature resulted in higher activity due to the larger Zr and Al loadings.
[References]
Kaminsky W, Laban A, Appl. Catal. A: Gen. , 222 (1-2), 47, 2001
Kaminsky W, J. Chem. Soc.-Dalton Trans. , 9 , 1413, 1998
Kaminsky W, Arndt M, Adv. Polym. Sci. , 127 , 143, 1997
Heurtefeu B, Bouilhac C, Cloutet E, Taton D, Deffieux A, Cramail H, Prog. Polym. Sci , 36 (1), 89, 2011
Fink G, Steinmetz B, Zechlin J, Przybyla C, Tesche B, Chem. Rev. , 100 (4), 1377, 2000
Bashir MA, Monteil V, Boisson C, McKenna TFL, React. Chem. Eng. , 2 (4), 521, 2017
Carnahan EM, Jacobsen GB, Cattech , 4 (1), 74, 2000
Alt HG, Dalton Trans. , 20 , 3271, 2005
Zurek E, Ziegler T, Prog. Polym. Sci , 29 (2), 107, 2004
Tayano T, Uchino H, Sagae T, Yokomizo K, Nakayama K, Ohta S, Nakano H, Murata M, Macromol. React. Eng. , 11 (2), 1, 2017
Stürzel M, Thomann Y, Enders M, Mülhaupt R, Macromolecules , 47 (15), 4979, 2014
Yim JH, Lee JS, Ko YS, Polymer , 39 (1), 169, 2015
Lee JS, Yim JH, Jeon JK, Ko YS, Catal. Today , 185 (1), 175, 2012
Cariño AC, Park SJ, Ko YS, Appl. Chem. Eng. , 29 (4), 461, 2018
Lee SY, Ko YS, J. Nanosci. Nanotechnol. , 13 (6), 4401, 2013
Lee JS, Ko YS, J. Mol. Catal. A-Chem. , 386 , 120, 2014
Encarnacion JD, Park SJ, Ko YS, Korean J. Chem. Eng. , 37 (2), 380, 2020
Celedonio J, Lee JS, Ko YS, Appl. Chem. Eng. , 25 (4), 396, 2014
Ko YS, Lee JS, Yim JH, Jeon JK, Jung KY, J. Nanosci. Nanotechnol. , 10 (1), 180, 2010
Zheng X, Smit M, Chadwick JC, Loos J, Macromolecules , 38 (11), 4673, 2005
Ek S, Root A, Peussa M, Niinistö L, Thermochim. Acta , 379 (1-2), 201, 2001
Albunia AR, Parades F, Jeremic D, Multimodal polymers with supported catalysts, Springer, New York (2019).
Van Grieken R, Calleja G, Serrano D, Martos C, Polym. React. Eng. , 11 (1), 17, 2003
Atiqullah M, Akhtar MN, Moman AA, Abu-Raqabah AH, Palackal SJ, Al-Muallem HA, Hamed OM, Appl. Catal. A: Gen. , 320 , 134, 2007
Bashir MA, Vancompernolle T, Gauvin R, Delevoye L, Merle N, Monteil V, Taoufik M, McKenna TFL, Boisson C, Catal. Sci. Technol. , 6 (9), 2962, 2016
Mueller R, Kammler HK, Wegner K, Pratsinis SE, Langmuir , 19 (1), 160, 2003
Gallas JP, Goupil JA, Vimont A, Lavalley JC, Gil B, Gilson JP, Miserque O, Langmuir , 25 (10), 5825, 2009
Armistead CG, Tyler AJ, Hambleton FH, Mitchell SA, Hockey JA, J. Phys. Chem. , 73 (11), 3947, 1969
이전 논문 다음 논문
Result Search