| abstract |
The invention relates to a method for depleting 2-methoxyethanol (MOE) from a mixture containing predominantly morpholine (MO) (crude morpholine), characterized in that crude morpholine is distilled in a distillation column in the presence of an alkali metal compound of general formula M+[RO-] (M+ representing an alkali metal cation and R representing hydrogen (H), methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, or tert-butyl), wherein MO and a compound of the general formula R-OH are distilled off and an alkali metal methoxyethanolate of the general formula M+[MeOEtO-] is obtained in the bottom of the column. |