A PROCESS FOR THE PREPARATION OF LINEAR a-OLEFIN OLIGOMERS

摘要

Process for the preparation of linear a-olefin oligomers comprising the following steps: a) providing at least one cascade of reaction vessels which comprises at least two reaction vessels connected in series, b) adding at least one solvent, at least one, in particular homogeneous, catalyst, if need be at least one, in particular homogeneous, co-catalyst, and ethylene to an initial, first reaction vessel, c) conducting an oligomerization reaction in the first reaction vessel for a first period of time sufficient to start a-olefin formation, d) transferring at least a part, in particular all, of the content of the first reaction vessel to a subsequent, second reaction vessel in the cascade, in particular by use of a first pipe System, in which ethylene is already present and/or to which ethylene is simultaneously and/or subsequently added, e) conducting the oligomerization reaction in the second reaction vessel for a second period of time sufficient to continue a-olefin formation, f) transferring at least a part, in particular all, of the content of the second reaction vessel to a last, third reaction vessel in the cascade, in particular via a third pipe System, in which ethylene is already present and/or to which ethylene is simultaneously and/or subsequently added, g) conducting the oligomerization reaction in the third reaction vessel for a third period of time sufficient to continue and terminate a-olefin formation, and h) isolating linear a-olefin oligomers from the third reaction vessel.