申请人:Loenders Raf
公开号:US20060287556A1
公开(公告)日:2006-12-21
Disclosed is a process for the preparation of primary, secondary and tertiary amines via a catalytic hydrogenation of unsubstituted, N-substituted, and N,N-disubstituted amides. The amide is led, together with an auxiliary amine, in vaporised form in a hydrogen containing gas flow over the catalyst. The process can be carried out at relatively low pressures, between 2 and 50 bars, using typical hydrogenation catalysts like CuCr-type catalysts. The amine is obtained with high yield and high selectivity. The process can be carried out in a continuous fixed bed reactor.
揭示了一种通过对未取代、N-取代和N,N-二取代酰胺进行催化加氢制备一次、二次和三次胺的过程。酰胺与辅助胺一起以蒸发形式在含氢气流中经过催化剂。该过程可以在相对较低的压力下进行,介于2到50巴之间,使用类似CuCr型催化剂的典型加氢催化剂。胺以高产率和高选择性获得。该过程可以在连续固定床反应器中进行。