Patent ID: 8747621

Claim:
A rectification column for the rectification of mixtures of high-boiling air- and/or temperature-sensitive products comprising: a column vessel providing for a descending reflux stream and an ascending vapour stream; packings installed in the column vessel for intensifying the mass and heat transport; and a side take-off section for taking off a product stream of the high-boiling air- and/or temperature-sensitive product at a side take-off of the column vessel, wherein the side take-off section comprises, (i) a collector bed located above the side take-off of the column vessel; (ii) a product stream distributor which redistributes reflux from the collector bed, (iii) a splash guard above the product stream distributor, (iv) a lateral vapour condensate outlet; (v) a product stream collector which collects the product stream for the side take-off and opens into the lateral vapour condensate outlet; (vi) a side take-off partial condenser positioned between the collector bed and the product stream collector.