Preparation of a transition metal catalyst component for Ziegler catalyst systems

US4568659A · kind A · utility

Assignee

• BASF SE

Inventors

• Volker Warzelhan · Bad Dürkheim, DE
• Rainer Karer · Kaiserslautern, DE
• Robert Bachl
• Guido Funk · Worms, DE

Key dates

• Filing date: Oct 30, 1984
• Grant date: Feb 4, 1986
• Expiry date: Oct 30, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F10/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A transition metal catalyst component (1) for Ziegler catalyst systems is prepared by (1.1) first combining (1.1.1) an inorganic oxidic substance (I), as the carrier, with (1.1.2) a solution (II) consisting of (IIa) an organic solvent and (IIb) a transition metal composition to form a suspension (III), evaporating down this suspension to form a solid-phase intermediate (IV) and (1.2) then combining (1.2.1) the solid-phase intermediate (IV) obtained from (1.1) with (1.2.2) a solution of an organoaluminum compound (V) to form a suspension, the resulting suspended solid-phase products (VI) being the transition metal catalyst component (1). The characteristic feature is that the solution (II) employed in stage (1.1) consists of (IIa) a certain oxahydrocarbon and (IIb) a mixture of (IIb1) a vanadium trichloride/alcohol complex, (IIb2) a titanium trihalide and (IIb3) a zirconium tetrahalide.