Titanium trichloride catalytic component and method for homo- of

Details Titanium trichloride catalytic component and method for homo- of Titanium trichloride catalytic component and method for homo- of

1979-12-21

1981-08-18

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526142, C08F 464

Patent

active

042845254

ABSTRACT:
A titanium tirchloride catalytic component obtained by separating it out of a solution consisting of titanium tetrachloride, an organic ether compound and an organo-aluminum compound dissolved in a solvent. The solvent is a mixture consisting of a saturated aliphatic hydrocarbon and/or an alicyclic hydrocarbon with 20 to 70% by volume of a concomitant aromatic hydrocarbon halide included therein. The organo-aluminum compound, the titanium tetrachloride and the organic ether compound are added to this mixed solvent at a solvent temperature not exceeding 55.degree. C.
Following this, on the way of a process for raising the solvent temperature to 45.degree.-150.degree. C. a temporary cooling process was repeated twice or more than twice, in the cooling process of which the solvent is temporarily cooled to a temperature lower than 40.degree. C. and at the time of this cooling the organic ether compound and/or titanium tetrachloride is further added, to obtain thereby a titanium trichloride catalytic component having average particle diameter between 10 and 1000.mu.. Then homo- or co-polymerization of .alpha.-olefin is carried out by using a catalyst system comprising this catalytic component and an organo-aluminum compound.

REFERENCES:
patent: 4192774 (1980-03-01), Kortbeek et al.

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