Process for the continuous preparation of an amine by reaction of a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary and secondary amines at a temperature in the range from 60 to 300° C. in the presence of a catalyst comprising copper oxide and aluminum oxide, wherein the reaction takes place in the gas phase and the catalytically active composition of the catalyst before reduction with hydrogen comprises PS from 20 to 75% by weight of aluminum oxide (Al
2
O
3
),
from 20 to 75% by weight of oxygen-comprising compounds of copper, calculated as CuO,
from 0 to 2% by weight of oxygen-comprising compounds of sodium, calculated as Na
2
O, and
less than 5% by weight of oxygen-comprising compounds of nickel, calculated as NiO, and the shaped catalyst body has a pellet shape having a diameter in the range from 1 to 4 mm and a height in the range from 1 to 4 mm.
通过在60至300°C温度范围内,在气相中存在
铜氧化物和氧化铝的催化剂的情况下,通过将一级或二级醇、醛和/或酮与
氢气和从
氨、一级和二级胺组成的氮化合物中选择的氮化合物反应,连续制备胺的过程,其中在还原之前,催化剂的催化活性组成包括氧化铝(
Al2O3)的重量百分比为20至75%,
氧化铜的重量百分比为20至75%,计为CuO的氧化物的重量百分比为0至2%,计为
Na2O的氧化物的重量百分比为小于5%,计为NiO的氧化物的重量百分比为小于5%,并且成型催化剂体具有直径在1至4毫米范围内和高度在1至4毫米范围内的颗粒形状。