A method of 3-aminomethyl-3,5,5-trimethyl cyclohexylamine prepared

The present invention discloses a method of 3-aminomethyl-3,5,5-trimethyl cyclohexylamine prepared, first, the 3-cyano-3,5,5-trimethyl cyclohexanone is reacted with ammonia under produce 3-cyano-3,5,5-trimethyl cyclohexyl-amine, 3-cyano-3,5,5-trimethyl cyclohexanone imine continue with hydrogen, hydrogenation catalyst in the presence of ammonia after the reaction was carried out to a conversion of 3-cyano-3,5,5-trimethyl cyclohexylamine, ammonia, the reaction solution is removed, and then 3-cyano-3,5,5-trimethyl cyclohexylamine feed stream in the presence of hydrogen and a hydrogenation catalyst to form 3-aminomethyl-3,5,5-trimethyl reaction cyclohexylamine. This method reduces the reaction pressure, reducing investment costs, greatly reducing the risk of high-pressure liquid ammonia leak brings.