PROCESS FOR PREPARING EDDN AND/OR EDMN AND A PROCESS FOR PREPARING DETA AND/OR TETA

摘要

A process for preparing EDDN and/or EDMN by a) conversion of FA, HCN and EDA, the conversion being effected in the presence of water, b) depleting water from the reaction mixture obtained in stage a), and c) treating the mixture from stage b) with an absorbent in the presence of an organic solvent, wherein the adsorbent is a solid acidic adsorbent.