PROCESS FOR OLIGOMERIZATION OF ETHYLENE

摘要

The present invention relates to a process for the oligomerization of ethylene, comprising the steps of: a) oligomerizing of ethylene in a reactor in the presence of solvent and catalyst; b) transferring reactor overhead effluent to an externally located cooling device and recycling condensed effluent into the reactor; c) transferring the reactor bottom effluent to a series of fractionation columns and, in the following order, i) optionally separating C6 fraction, ii) separating C6 fraction, iii) simultaneously separating C8 and C10 fractions and recycling thereof into the reactor, and iv) separating residues comprising = C12 fractions, spent catalyst, polymer material and quench media, from the process, wherein the solvent is separated in any of the steps i)-iv) and/or in an additional step.