METHOD AND APPARATUS FOR PRODUCING MONO(LOWER ALKYL)MONOALKANOLAMINE

摘要

PROBLEM TO BE SOLVED: To provide a method and apparatus for producing a mono(lower alkyl)monoalkanolamine that enables the reduction of its production cost and the reduction of its waste water treatment cost. SOLUTION: The apparatus for producing a mono(lower alkyl)monoalkanolamine is constituted of a reaction column 12 to which a raw material mixture 11 consisting of a mono(lower alkyl)amine (AA: a raw material I) and an alkylene oxide (AO: a low material II) is fed, an unreacted raw material distillation column 14 for separating unreacted raw materials 15 from a reaction product 13a [including the unreacted raw materials 15, an intended reaction product 17 (a monomer) and a byproduct 18 (a dimer)], and a flush drum 16 to which a reaction product 13b [including the intended reaction product 17 (the monomer) and the byproduct 18 (the dimer)] is fed for separating a mono(lower alkyl)monoalkanolamine (the monomer) i.e., the intended reaction product 17 in the gas state. COPYRIGHT: (C)2010,JPO&INPIT