METHOD FOR THE RECTIFICATIVE SEPARATION OF FLUIDS CONTAINING (METH)ACRYLIC MONOMERS

摘要

A process for the distillative separation of (meth)acrylic monomer containing liquids in a distillation column comprises direct cooling to form a condensate in a condensation chamber such that the direct cooling of the liquid is carried out in at least two separate spray zones arranged in series. A process for the distillative separation of (meth)acrylic monomer containing liquids in a distillation column (I) from the head of which (meth)acrylic monomer containing liquor is removed and directly cooled to form a condensate whereby the condensation chamber at the head of the column is separated from the region containing effective separating components of the distillation column by only one tray and is characterized in that the direct cooling of the liquid is carried out in at least two separate spray zones arranged in series by spraying of super cooled polymerization inhibitor containing head condensate whereby the temperature of the sprayed super cooled head condensate reduces from spray zone to spray zone. An Independent claim is included for the distillation column (I) comprising at least one tray and a spray condenser having at least two spray zones.