申请人:BASF Aktiengesellschaft
公开号:US05254738A1
公开(公告)日:1993-10-19
A process for the preparation of a 1,4-alkylenediamine of the general formula I ##STR1## in which the substituents R.sup.1 and R.sup.2 are independently hydrogen, C.sub.1 -C.sub.10 -alkyl, phenyl or benzyl, by reacting a succinic dinitrile of the general formula II ##STR2## in which R.sup.1 and R.sup.2 have the meanings stated, with hydrogen at a temperature of from 30.degree. to 250.degree. C. and a pressure of from 50 to 350 bar in contact with a hydrogenation catalyst, wherein the hydrogenation catalyst used contains cobalt oxide and one or more oxides of the elements iron, nickel, manganese, chromium, molybdenum, tungsten, and phosphorus and one or more oxides of elements in the alkali metal group, alkaline earth metal group, and rare earth group of the Periodic Table, and of scandium, and/or of yttrium.
一种制备通式I的1,4-烷基二胺的方法,其中取代基R.sup.1和R.sup.2独立地为氢、C.sub.1-C.sub.10-烷基、苯基或苄基,通过将通式II的琥珀酰二腈与氢在30℃至250℃的温度和50至350巴的压力下与含有钴氧化物和铁、镍、锰、铬、钼、钨、磷元素的氧化物以及元素在周期表碱金属组、碱土金属组和稀土金属组以及钪和/或钇的氧化物的氢化催化剂接触反应而得。