PROCESS FOR PRODUCING HEXAMETHYLENEDIAMINE AND AMINOCAPRONITRILE FROM ADIPONITRILE, WHEREIN THE HEXAMETHYLENEDIAMINE CONTAINS LESS THAN 200 PPM TETRAHYDROAZEPINE

摘要

Process for making both ACN and HMD from partial hydrogenation of ADN by using a combination of distillations resulting in the formation of a mixture of HMD and THA that can be hydrogenated to produce a mixture of HMD and HMI that can be separated easily by simple distillation.