Titanium trichloride catalyst complex and process for the produc

Details Titanium trichloride catalyst complex and process for the produc Titanium trichloride catalyst complex and process for the produc

1979-02-12

1981-04-14

Smith, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526142, 526144, 526351, C08F 466, C08F 1006

Patent

active

042621046

ABSTRACT:
A titanium trichloride catalyst complex is produced by reducing titanium tetrachloride with an organo-metal compound and then activating the resulting reduced solids by treatment with a chlorinated hydrocarbon and titanium tetrachloride in the presence of a Lewis base complexing agent. The employment of the chlorinated hydrocarbon and titanium tetrachloride in the presence of the Lewis base complexing agent unexpectedly produces a synergistic effect whereby activating conditions, e.g., temperature, time and TiCl.sub.4 concentration can be employed resulting in a titanium trichloride complex having superior alpha-olefin polymerization properties as compared to titanium trichloride catalyst complexes obtained by treatment under the same conditions in the absence of either titanium tetrachloride or chlorinated hydrocarbon. Moreover, unexpectedly high yields of activated catalyst can be recovered without loss of activity.

REFERENCES:
patent: 4123387 (1978-10-01), Shiga et al.
patent: 4127504 (1978-11-01), Ueno et al.
patent: 4136243 (1979-01-01), Appleyard et al.

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