Effect of silica-type sol-gel carrier’s structure and morphology on a supported Ziegler-Natta catalyst for ethylene polymerization |
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Authors: | ?ukasz Korach Krystyna Czaja Andrzej Jarz?bski |
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Affiliation: | a Institute of Chemistry, Opole University, Oleska 48, 45-052 Opole, Poland b Institute of Chemical Engineering, Polish Academy of Sciences, Ba?tycka 5, 44-100 Gliwice, Poland |
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Abstract: | Silica xerogels with different structures and morphology, synthesized using a sol-gel procedure, were used as a carrier of vanadium catalysts (VOCl3/AlEt2Cl) for ethylene polymerization. Two techniques of catalyst synthesis were applied: slurry impregnation and gas-phase adsorption and the relevant polymerization methods were then employed. The effect of the carrier structure and morphology on the vanadium loading in the catalysts, the catalyst’s activity and kinetic stability were investigated. |
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Keywords: | Supported catalysts Sol-gel Silica UHMWPE Ethylene polymerization |
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