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Ziegler-natta catalyst for ethylene and propylene polymerization supported on adducts of magnesium chloride with methyl and ethyl alcohols

✍ Scribed by D.N. Taveira Magalhães; O. Do Coutto Filho; F.M.B. Coutinho

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
379 KB
Volume
27
Category
Article
ISSN
0014-3057

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Ziegler-Natta catalysts for ethylene and
Ziegler-Natta catalysts for ethylene and propylene polymerizations supported on the products of thermal desolvation of the adducts of magnesium chloride with methyl and ethyl alcohols
✍ D.N. Taveira Magalhães; O. Do Coutto Filho; F.M.B. Coutinho 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 306 KB

MgCl 2 adducts with alcohols and ethers can be converted to more active supports through the elimination of the alcohol molecules from the adducts by thermal desolvation. Catalysts supported on the products of thermal desolvation of the MgCI: adducts with methyl and ethyl alcohols have been prepared

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MgC12 as a support for the polymerization catalyst of propylene was prepared by dissolving it in ethanol and by recrystallizing it in n-decane media with vacuum drying. This support was modified by adding ethylbenzoate as an electron-donor, by treating it with triethylaluminium (TEA), and/or by impr

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## Abstract Experiments designed to prepare Ziegler‐Natta catalysts with controlled particle morphology are reported. Different dealcoholation processes are used on the adduct MgCl~2~ · __n__EtOH to prepare the catalysts: either thermal treatment or chemical dealcoholation employing different subst

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## Abstract This article demonstrates the influence of the molar ratio between diether as internal donor and Magnesium dichloride in processing of the catalyst preparation on the catalytic performance for propylene polymerization with MgCl~2~‐supported Ziegler–Natta catalyst. The effect of electron