Process for purifying a hexamethylenetetramine master solution by electrodialysis.

摘要

Process for purifying hexamethylenetetramine master solutions. According to the invention the hexamethylenetetramine master solution obtained by the reaction of formaldehyde and ammonia is subjected to electrodialysis by being caused to circulate between ionite membranes at a direct electrical voltage of 0.5 to 2.5 V. The process can find applications in the chemical industry.