| 摘要 |
The invention relates to a process for the preparation of a vanadium trichloride component (1) for Ziegler catalyst systems, characterised in that the vanadium trichloride component (1) is prepared by (1.1), in a first step, keeping a suspension of (1.1.1) a finely divided vanadium trichloride, (1.1.2) an alkanol, and (1.1.3) a liquid hydrocarbon which is inert towards the vanadium trichloride (1.1.1), at a certain temperature for a certain time with constant mixing, and then (1.2), optionally and advantageously, in a second step, (1.2.1) combining the suspension obtained from the first step (1.1) with (1.2.2) a hydrocarbon-organic aluminium compound and keeping the mixture at a certain temperature for a certain time with constant mixing, and obtaining the novel vanadium trichloride catalyst component (1) in this way by means of the solid present in suspended form after step (1.1) or (1.2). This allows polymers having particular property combinations to be prepared.
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