Patent ID: 7368621

Claim:
Process for preparing 1-octene comprising: a) reacting catalytically a butadiene-containing stream with methanol to give a stream comprising at least 1-methoxy-2,7-octadiene, b) hydrogenating catalytically the 1-methoxy-2,7-octadiene-containing stream to give a stream comprising at least 1-methoxyoctane, and c) dissociating catalytically at least part of the 1-methoxyoctane to give a dissociation product comprising at least water and 1-octene, wherein d) the dissociation product from c) is separated by distillation into a gaseous low-boiling fraction comprising at least 1-octene and water and a liquid high-boiling fraction comprising at least 1-octene and 1-methoxyoctane, e) the low-boiling fraction is completely or partially condensed and separated into an aqueous phase and a 1-octene-containing, nonpolar phase, f) the nonpolar phase from e) is recirculated to step d) and g) the high-boiling fraction from d) is separated into a 1-octene-containing fraction and a 1-methoxyoctane-containing fraction.