Patent ID: 9079122
Filing Date: 2015-07-14
Classification: B01D,C07C

Abstract:
1. A distillation column with external circulation evaporator for carrying out a distillation process, in which solid or gel particles or liquid droplets with a higher density than the bottom product are present in the bottom product, in which part of the bottom product is provided for the further treatment and part provided for the evaporator circulation, which parts are withdrawn from the bottom via separate outlets, wherein, in the bottom of the column a sedimentation zone is installed, said sedimentation zone being separated from the rest of the column bottom area by a wall, the lower end of which is open and in hydraulic connection with the column, from whose upper region clarified from solid and/or gel particles the part of the bottom product provided for the evaporator circulation is withdrawn and the part provided for the further treatment outside the column is withdrawn from the lower region of the bottom of the column.