Abstract: The title catalysts were prepared by treating polymer-​MgCl2 supports with TiCl4, VCl4, or VOCl3 and used in the polymerisation of ethylene. The activity of Ti catalysts was higher than that of V catalysts but the shape of the curve of their activity vs. concentration (c) of Ti or V was the same. Colorimetric, ESR, and activity data indicated that the active sites were formed via interaction of individual V(IV) or Ti(IV) species (low c) or their assocs. (high c) with (Me2CHCH2)​3Al cocatalyst. The adsorption of V(IV) and Ti(IV) species and subsequent formation of the active sites occurred on the same surface sites of MgCl2. After interaction with cocatalyst, individual Ti (IV) species transformed into surface assocs. containing Ti(III)​.

Cite: Zakharov V.A. , Mikenas T.B. , Makhtarulin S.I. , Poluboyarov V.A. , Pankratʹev Y.D.
Study of Supported Titanium-Magnesium and Vanadium-Magnesium Catalysts for Polymerization of Ethylene Containing Different Amounts of Transition-Metal
Kinetics and Catalysis. 1989. V.29. N5 pt 2. P.1103-1106. WOS РИНЦ

Original: Захаров В.А. , Микенас Т.Б. , Махтарулин С.И. , Полубояров В.А. , Панкратьев Ю.Д.
Исследование нанесенных титанмагниевых и ванадиймагниевых катализаторов полимеризации этилена с различным содержанием переходного металла
Кинетика и катализ. 1988. Т.29. №5. С.1267-1271. РИНЦ ANCAN

Dates:

Submitted:	Jan 12, 1987
Published print:	May 1, 1989

Identifiers:

Web of science:	WOS:A1988AD78300026
Elibrary:	29281388

Citing:

DB	Citing
Web of science	3
Elibrary	3