| abstract |
PCT No. PCT/JP86/00614 Sec. 371 Date Jun. 17, 1987 Sec. 102(e) Date Jun. 17, 1987 PCT Filed Dec. 3, 1986 PCT Pub. No. WO87/03592 PCT Pub. Date Jun. 18, 1987.Triethylene diamines are prepared in a high yield with an amine compound having a specific group as the starting material by bringing the same into contact with a catalyst formed of a crystalline metal silicate of which the molar ratio (SiO2/M2O3) of silicon dioxide (SiO2) to the oxide of a tervalent metal (M2O3, M being the tervalent metal) is at least 12. Particularly high efficiency can be obtained by using a crystalline metal silicate crystallized in the presence of an organic crystallizing agent. |