Process for the Catalytic Aldol Condensation of Aldehydes
AssigneeBASF SE
InventorsRoland Krokoszinski, Steffen Oehlenschläger, Rainer Papp, Jens Rudolph, Armin Ulonska
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Abstract
The present invention relates to a process for the catalytic aldol condensation of aldehydes, in particular for preparing α,β-unsaturated aldehydes, in a multiphase reactor.
Claims19
A process for the catalytic aldol condensation of at least one aldehyde in a two-phase liquid reaction mixture in a reactor which has a reaction zone and a disengagement zone located directly above the reaction zone, wherein an aldehyde-comprising phase dispersed in a continuous aqueous catalyst-comprising phase is produced and a stream of the two-phase reaction mixture is allowed to rise from the reaction zone into the disengagement zone and coalesce, with a continuous organic phase being formed in the upper region of the disengagement zone.
An apparatus comprising a reactor which has a reaction zone and a disengagement zone located directly above the reaction zone, wherein the reaction zone has a device for producing an organic phase dispersed in a continuous aqueous phase and the disengagement zone allows the coalescence of the two-phase reaction mixture and the formation of a continuous organic phase in the upper region of the disengagement zone for reaction of a two-phase liquid reaction mixture.
Dependencies are inferred from the claim text.