| abstract |
The invention discloses a production method for the co-production of m-xylylenediamine and 1,3-diamine methylcyclohexane. The production method comprises the steps of contacting and reacting isophthalonitrile with hydrogen in the presence of a catalyst to generate m-xylylenediamine and 1,3-diaminomethylcyclohexane, the hydrogen/nitrile molar ratio is 10-100, preferably 30-80. The present invention can adjust the ratio of target product m-xylylenediamine and 1,3-diaminomethylcyclohexane by optimizing the process conditions of the hydrogen nitrile ratio and adjusting the catalyst, and the molar ratio of the two is about 9:1. ~1:1. |