Apparatus for carrying out mass transfer processes

The invention relates to an industrial apparatus for carrying out mass transfer processes with high-viscosity liquids, particularly for boiling down and/or devolatilizing polymer melts. The apparatus is essentially based on a vertically disposed vessel, in which the high-viscosity liquid to be treated is divided into a multiplicity of individual streams which under the action of gravity run off into the sump of the vessel. Apparatus for carrying out mass transfer processes with high-viscosity liquids comprising a vertically arranged vessel () having a feeder () for the liquid to be treated, an outlet () for volatile components and an outlet () for the treated liquid, the feeder means () being equipped with a distributor element () having a multiplicity of orifices () for subdividing the high-viscosity liquid to be treated into a multiplicity of individual streams, wherein essentially vertically arranged wire loops () are disposed in the vicinity of the orifices (), along which wire loops the high-viscosity liquid runs off under the action of gravity.