A process for preparing ethylamines, butylamines and mixed ethyl/butylamines comprising the following steps: (i) Hydroamination of butadiene and ethylene by means of a monoalkylamine and/or a dialkylamine in which alkyl=ethyl and/or butyl in the presence of an alkali metal amide as catalyst, (ii) isomerization of the amines obtained in the hydroamination (i), if appropriate under the following conditions: (iia) prior fractionation into particular fractions and/or (iib) isomerization under hydrogenating conditions and/or (iic) isomerization in the presence of ammonia, (iii) fractionation of the resulting product mixture with isolation of the desired product amines and recycle of the amines suitable as starting material to step (i).
一种制备
乙胺、
丁胺和乙/丁
混合胺的工艺,包括以下步骤:(i) 在碱
金属酰胺作为催化剂的存在下,通过单烷基胺和/或二烷基胺(其中烷基=乙基和/或丁基)对
丁二烯和
乙烯进行加氢转化,(ii) 酌情在以下条件下对加氢转化 (i) 过程中获得的胺进行异构化:(iii)对所得产品混合物进行分馏,分离出所需的产品胺,并将适于作为步骤(i)起始原料的胺回收。