Title: Process for the production of highly pure dicyclohexylamine from by- products resulting from the production of cyclohexylamine Process for the production of highly pure dicyclohexylamine during the production of cyclohexylaminefrom aniline in a liquid phase on ruthenium catalyst on thealuminium carrier or coalconsists in that the concentrated dicyclohexylamine obtained by amultiple rectification of the reaction mixture is again catalytically hydrogenated on the metal Ru,Pd,Ptor Rhcatalyston the carrier, at the temperature between 80 and 240°Cand pressure between 0.1 and 9.0 MPa,in the same or in other hydrogenation device, whereby above 99.0% w/wconcentrated dicyclohexylamine is obtained.
生产高纯度
二环己胺的方法,从生产
环己胺的副产物中得到。在液相中,通过在铝载体或煤上的
钌催化剂上,从
苯胺中生产
环己胺的过程中生产高纯度
二环己胺的方法包括以下步骤:通过对反应混合物进行多次精馏获得浓缩的
二环己胺,然后再次在
金属
钌、
钯、
铂或
铑催化剂载体上进行催化氢化,温度在80至240°C之间,压力在0.1至9.0 MPa之间,在相同或其他氢化装置中进行,从而得到超过99.0%的重量浓缩的
二环己胺。