| abstract |
A process for reforming cyclic alkylene amines into extended cyclic alkylene amines of amine comprising reacting a cyclic alkyl amine or mixture of cyclic alkylene amines with a catalyst. , in liquid phase and without using reactive alcohol. Said catalyst is selected from the group consisting of (a) metal oxides of group VB, (b) metal phosphates of group VB, (v) silicates of groups IIA, IIIB, IVB and VB, and (d) d specified tungsten oxides. For example, piperazine or a mixture of piperazine and aminoethylpiperazine is contacted with magnesium silicate to obtain a mixture of extended amine piperazines, comprising 1,2-bis (piperazinyl) -ethane and N , N'-bis (2-piperazinylethyl) piperazine. |