| abstract |
The invention discloses a preparation method of N,N,N'-trimethylbis(aminoethyl) ether. Under the condition of hydrogen, 2-[2-(dimethylamino)ethoxy]ethanol and a Methylamine is a raw material that reacts in the presence of a catalyst to prepare N,N,N'-trimethylbis(aminoethyl)ether, and co-produces methylmorpholine and bis(2-dimethylaminoethyl)ether; The catalyst is a supported heterogeneous catalyst, including main active components, auxiliary agents, functional element N and supports. The catalytic reaction process of the present invention is simple, with mild reaction conditions, convenient process operation, stable system, continuous production process, simple separation of product and catalyst, reduced one-time investment cost and subsequent separation cost, and is easy to realize large-scale continuous industrial production. |