Single step process for the preparation of lower...

Details Single step process for the preparation of lower... Single step process for the preparation of lower...

2007-09-04

2007-09-04

Lu, Caixia (Department: 1713)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

C502S118000, C526S124200, C526S124300

Reexamination Certificate

active

10552217

ABSTRACT:
Single step process for the preparation of lower α-alkene polymerisation heterogeneous solid catalyst, wherein the procatalyst is obtained by reacting organomagnesium precursor and titanium tetrahalide or titanium haloalkoxo species of the formula Ti(OR)m Xn, with a hydrocarbon or halohydrocarbon solvent and internal electron donor and optionally an acid halide under microwave irradiation of 300 to 1200 W. The mole ratio of the organomagnesium precursor to the titanium tetrachloride or titanium haloalko species is 1:6 to 1:20 and the mole ratios of the electron donor and acid halide to titanium is 0.3 to 1.5 and 0.02 to 0.2, respectively.

REFERENCES:
patent: 5075396 (1991-12-01), Kashiwa et al.
patent: 1530445 (1978-11-01), None

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