Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By addition of entire unsaturated molecules – e.g.,...
Patent
1988-07-20
1989-12-12
Garvin, Patrick P.
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
By addition of entire unsaturated molecules, e.g.,...
585523, 502112, 502117, C07C 202
Patent
active
048869333
ABSTRACT:
In a method for the production of linear .alpha.-olefins by the oligomerization of ethylene in the presence of a catalyst system composed of (A) zirconium tetrachloride, (B-a) ethyl aluminum sesquichloride and (B-b) triethyl aluminum, an improvement is proposed which comprises using the catalyst system prepared in a specific procedure in which one of the essential conditions is the order of successive introduction of the three components along with the concentration of zirconium tetrachloride, temperature and length of time. It is essential that introduction of the component (B-b) is not preceded by the contacting of the components (A) and (B-a). Accoridng to the invention, the reaction product contains the species of the linear .alpha.-olefin compounds having higher usefulness than other species in a greatly increased yield.
REFERENCES:
patent: 4486615 (1984-12-01), Langer, Jr.
patent: 4783573 (1988-11-01), Shiraki et al.
Patent Abstracts of Japan, unexamined applications, field C, vol. 11, No. 167, May 28, 1987.
Patent Abstracts of Japan, unexamined applications, field C, vol. 11, No. 259, Aug. 21, 1981.
Shiraki Yasushi
Tamura Takao
Garvin Patrick P.
Idemitsu Petrochemical Co. Ltd.
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