70495-38-4Relevant academic research and scientific papers
PROCESS FOR PREPARING EDDN AND EDMN
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Paragraph 0581; 0582, (2013/04/10)
A process for preparing EDDN and/or EDMN by conversion of FA, HCN and EDA, the reaction being effected in the presence of water, and, after the conversion, water being depleted from the reaction mixture in a distillation column, which comprises performing the distillation in the presence of an organic solvent which has a boiling point between water and EDDN and/or EDMN at the distillation pressure existing in the column or which forms a low-boiling azeotrope with water.
PROCESS FOR PREPARING EDDN AND/OR EDMN BY REACTING EDFA AND/OR EDMFA WITH HCN
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Paragraph 0491; 0492, (2013/03/26)
A process for reacting ethylenediamine-formaldehyde adduct (EDFA) and/or ethylene-diamine-monoformaldehyde adduct (EDMFA) with hydrogen cyanide (HCN) in a reactor with limited backmixing at a temperature in the range from 20 to 120° C., wherein the residence time in the reactor is 300 seconds or less.
