Patent ID: 8829245

Claim:
A method for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine, the method comprising: a) reacting 3-cyano-3,5,5-trimethyl-cyclohexanone with NH 3 to obtain a product containing 3-cyano-3,5,5-trimethyl-cyclohexylamine; b) mixing the product of step a) with a basic compound in the presence of hydrogen, NH 3 and a first hydrogenation catalyst to obtain a product containing 3-aminomethyl-3,5,5-trimethylcyclohexylamine and 3-cyano-3,5,5-trimethyl-cyclohexylamine, wherein the space velocity on the first hydrogenation catalyst is 0.5-10 g of 3-cyano-3,5,5-trimethyl-cyclohexanone/(per ml catalyst per hour); c) mixing the product of step b) with an acidic compound in the presence of hydrogen, NH 3 and a second hydrogenation catalyst, wherein the 3-cyano-3,5,5-trimethyl-cyclohexylamine in the product of step b) is converted into 3-aminomethyl-3,5,5-trimethyl-cyclohexylamine.