| 摘要 |
PROBLEM TO BE SOLVED: To obtain triethylenediamine (TEDA) and piperazine(PIP) in high yield by bringing a nitrogen-containing compound into contact with hydrogen cation or ammonium type specific pentasil zeolite at a high temperature. SOLUTION: (A) An amine compound which is ethanolamine, ethyleneamine, piperazine, morpholine or a mixture thereof is passed through the surface of (C) hydrogen cation or ammonium type pentasil zeolite (e.g. crystalline aluminosilicate), preferably ZSM-5 zeolite, preferably under 0.001-200 atom pressure at 100-450 deg.C to provide the objective compound. Furthermore, in the component C, a molar ratio of silica/metal oxide is preferably >=12:1. |
