Browdy and Neimark
Process for producing dioctamethylene triamine
 A process for producing dioctamethylene triamine is disclosed which comprises dimerizing octamethylene diamine in the presence of a zeolite catalyst, characterized in that the catalyst is represented by the formula: EQU Na.sub.2 O.cndot.xSiO.sub.2 .cndot.yAl.sub.2 O.sub.3 wherein x and y are so selected that the molar ratio of Na.sub.2 O to Al.sub.2 O.sub.3 is in the range of 0.02 to 0.05 and the molar ratio of SiO.sub.2 to Al.sub.2 O.sub.3 is in the range of 1 to 10. 
Mitsubishi Gas Chemical Company, Inc.
C
C07C
inventional
Masao Koichiro
Saito Yamada