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Structure, Composition and Activity of Supported Titanium-Magnesium Catalysts for Ethylene Polymerization Full article

Conference Catalytic Polymerizatlon of Olefins : International Symposium on Future Aspects of Olefin Polymerization
04-06 Jul 1985 , Tokyo
Source Catalytic Polymerizatlon of Olefins : Proceedings of the International Symposium on Future Aspects of Olefin Polymerization, 4-6 July 1985, Tokyo, Japan
Compilation, Elsevier B.V.. Amsterdam.1986. 489 c. ISBN 9780444995186.
Journal Studies in Surface Science and Catalysis
ISSN: 0167-2991
Output data Year: 1986, Volume: 25, Pages: 71-89 Pages count : 19 DOI: 10.1016/S0167-2991(09)60320-7
Authors Zakharov V.A. 1 , Makhtarulin S.I. 1 , Perkovets D.V. 1 , Moroz E.M. 1 , Mikenas T.B. 1 , Bukatov G.D. 1
Affiliations
1 Institute of Catalysis, Novosibirsk 630090, USSR

Abstract: Studied is the effect of the substructure of magnesium chloride on the composition and activity of Ti-Mg catalysts prepared by different methods: (i) adsorption of TiCl4, on highly dispersed magnesium chloride prepared from nonsolvated buthylmagnesiumchloride, (ii) adsorption of TiCl4 on magnesium chloride activated by milling, and (iii) co-milling of magnesium chloride with TiCl4. TiCl4 is shown to react with the defects of the magnesium chloride structure. The concentration of these defects is associated with the size of the coherent scattering range, which is determined from X-ray data. Evidences have been obtained that the surface of magnesium chloride is nonuniform with respect to the interaction with TiCl4 and VCl4, The resulting V4+, Ti4+ and Ti3+ surface compounds also are nonuniform in the coordination state and catalytic properties. The state of Ti3+ ions after the interaction of Ti-Mg catalysts with trialkyl-aluminum has been examined. It is assumed that active centers of these systems are in the surface associates of Ti3+ ions.
Cite: Zakharov V.A. , Makhtarulin S.I. , Perkovets D.V. , Moroz E.M. , Mikenas T.B. , Bukatov G.D.
Structure, Composition and Activity of Supported Titanium-Magnesium Catalysts for Ethylene Polymerization
In compilation Catalytic Polymerizatlon of Olefins : Proceedings of the International Symposium on Future Aspects of Olefin Polymerization, 4-6 July 1985, Tokyo, Japan. – Elsevier B.V.., 1986. – C.71-89. – ISBN 9780444995186. DOI: 10.1016/S0167-2991(09)60320-7 Scopus РИНЦ ANCAN OpenAlex
Dates:
Published print: Jan 1, 1986
Published online: Jan 4, 2009
Identifiers:
Scopus: 2-s2.0-0022957754
Elibrary: 31009359
Chemical Abstracts: 1986:443441
Chemical Abstracts (print): 105:43441
OpenAlex: W91207049
Citing:
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Scopus 13
Elibrary 13
OpenAlex 7
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