A PROCESS FOR THE MANUFACTURE OF DIETHYLENETRIAMINE AND HIGHER POLYETHYLENEPOLYAMINES

The invention relates to a process for the manufacture of diethylenetriamine and higher polyethylenepolyamines by a transamination of ethylenediamine. The transamination is performed at a temperature from 135~C to 180~C at a pressure from 5 Mpa to 40 Mpa in the presence of hydrogen and a particulate...

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Bibliographische Detailangaben
Hauptverfasser: EKENBERG, KRISTINA, LIF, JOHAN
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:The invention relates to a process for the manufacture of diethylenetriamine and higher polyethylenepolyamines by a transamination of ethylenediamine. The transamination is performed at a temperature from 135~C to 180~C at a pressure from 5 Mpa to 40 Mpa in the presence of hydrogen and a particulate catalysts containing 26 to 65% by weight of nickel on an oxide carrier. A high conversion degree of ethylenediamine and a high selectivity to form acyclic polyethylenepolyamines, such as diethylenetriamine are obtained by the process. The formation of cyclic amine compounds, e.g. piperazine, is low.