Process for the preparation of triethylenediamine (TEDA)

A process for the preparation of triethylenediamine (TEDA) by reaction of ethylene diamine (EDA) in the presence of a zeolite catalyst, in which the zeolite catalyst comprises one or more metals M in the Oxidation states II, III or IV contains, as oxides,for M = Al, a SiO2 / M2O3 - Molar ratio of greater than 1400: 1,for M = metal in oxidation state II or M = two or more Metals in the oxidation state II a SiO2 / MO - molar ratio of greater than 100: 1for M = metal in oxidation state III or M = two or more Metals in oxidation state III a SiO2 / M2O3 - molar ratio of greater than 100: 1 andfor M = metal in oxidation state IV or M = two or more Metals in the oxidation state IV, an SiO2 / MO2 - molar ratio of greater than 10: 1,and the reaction temperature is 250 to 500 ° C.