Catalyst for synthesis of bis(aminomethyl)cyclohexane and preparation method and application thereof

• Main Authors: ZHANG CONGYING, GONG YAJUN, LI XIN, REN SHUJIE, DING HAO, TANG LEI, LIU ZHENGUO, YANG ZAIGANG
• Format: Patent
• Language: Chinese; English
• Published: 12.11.2019
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a catalyst for synthesis of bis(aminomethyl)cyclohexane. The catalyst is prepared from a carrier, active components and additives, wherein the active components and the additives adhere to the carrier. The active components are selected from one or more of metals such as Ru, Rh, Ni, Co, Pt and Pd, and preferably, the active components are the metal Ru and are selected fromone or more of the metals such as Rh, Ni, Co, Pt and Pd; and the additives comprise a first additive and a second additive, the first additive is selected from one or more of Mn, Cr, Li and Ca, and the second additive is selected from one or more of Fe, Cu, Zn, Ag, Sn, La and Ce. Compared with the prior art, the catalyst is high in activity, good in selectivity and long in life, liquid ammonia oralkali metal hydroxides do not need to be added in a reaction system to serve as an deamination inhibitor, and thus the hydrogenation of benzene dimethylamine can be catalyzed so as to obtain bis(aminomethyl)cyclohexane in hi