| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing piperazine and triethylene diamine that allows piperazine to be obtained selectively with high yields.SOLUTION: At least one amine selected from the group consisting of ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, pentaethylene hexamine, and their alkylate is brought into contact with zeolite having BEA structure for a reaction.SELECTED DRAWING: None |
