| abstract |
The invention belongs to the technical field of organic synthesis, in particular to a method for producing isopropanolamine and 1,2-propylene diamine by cracking 2,5-dimethylpiperazine. Under the action of Co-Ni-Pd/Al 2 O 3 catalyst, 2,5-dimethylpiperazine is subjected to a contact cracking reaction to obtain a mixture of isopropanolamine and 1,2-propylene diamine, which is then separated by distillation Pure isopropanolamine and 1,2-propanediamine are obtained. The method for producing isopropanolamine and 1,2-propylene diamine by cracking 2,5-dimethylpiperazine of the present invention adopts Co-Ni-Pd/Al 2 O 3 catalyst for cracking reaction, and the catalyst has The invention has the advantages of high specific surface area, high mechanical strength, good stability, simple preparation process, and high catalytic activity for the cracking of 2,5-dimethylpiperazine. |