Method for producing oligomers

Details Method for producing oligomers Method for producing oligomers

2005-02-08

2005-02-08

Dang, Thuan D. (Department: 1764)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

C585S530000

Reexamination Certificate

active

06852898

ABSTRACT:
In a process for preparing essentially unbranched oligomers of alkenes having from 4 to 6 carbon atoms starting from the alkenes or a hydrocarbon stream comprising such alkenes over a nickel-containing heterogeneous catalyst in an adiabatically operated reactor at from 20 to 300° C. and pressures of from 1 to 100 bar, a first substream of the output from the reactor is worked up to isolate the oligomers and the second substream is recirculated together with fresh alkene or a fresh hydrocarbon stream comprising such alkenes to the reactor.

REFERENCES:
patent: 19910103 (1999-03-01), None
patent: 199 22 038 (2000-11-01), None
patent: 99 25668 (1999-05-01), None

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