| abstract |
(57) [Summary]nStarting from a mixture obtained by reacting butadiene with hydrocyanic acid in the presence of a phosphorus-containing compound and a catalyst essentially containing adiponitrile and containing the phosphorus-containing compound, 6-aminocapronitrile and hexamethylene In a process for the simultaneous production of diamines, (1) reducing the proportion by weight of phosphorus-containing compounds in the mixture, calculated as phosphorus, and (2) partially hydrogenating the product mixture in the presence of a catalyst to obtain α , Ω-aminonitrile, and (3) separating and removing 6-aminocapronitrile and hexamethylenediamine from the mixture. |