Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By addition of entire unsaturated molecules – e.g.,...
Reexamination Certificate
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
Heidemann Thomas
Schulz Ralf
Schwab Peter
Zehner Peter
BASF - Aktiengesellschaft
Dang Thuan D.
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