METHOD AND APPARATUS FOR PRODUCING MONO(LOWER ALKYL)MONOALKANOLAMINE

摘要

An apparatus for producing a mono (lower alkyl) monoalkanolamine according to the present invention includes a reaction distillation tower (12) into which a mixed raw material (11) containing a mono (lower alkyl) amine (AA: raw material I) and an alkylene oxide (AO: raw material II) is fed through a raw-material main-feed line (L0); and a purification distillation tower (19) that subjects a reaction product (13) separated in a liquid state to distillation to separate it into a objective reaction product (monomer) (20) and residue (dimer) (21), where unreacted raw materials (16) are separated from a tower top (12a) through a line (L1) and the reaction product (13) is separated from a tower bottom (12b) through a line (L2).