Continuous process for the preparation of diaminodicyclohexylmethane

Continuous process for the preparation of diaminodicyclohexylmethane

The invention relates to a process for the preparation of diaminodicyclohexylmethane ("PACM") with a proportion of trans,trans-4,4′-diaminodicyclohexylmethane of from 17 to 24% by hydrogenation of diaminodiphenylmethane ("MDA") in the presence of a pulverulent catalyst in a conti...

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Bibliographische Detailangaben
Hauptverfasser: Groschl, Andreas, Bunnenberg, Rolf, Holzbrecher, Michael, Tilling, Andreas
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to a process for the preparation of diaminodicyclohexylmethane ("PACM") with a proportion of trans,trans-4,4′-diaminodicyclohexylmethane of from 17 to 24% by hydrogenation of diaminodiphenylmethane ("MDA") in the presence of a pulverulent catalyst in a continuously operated suspension reactor at a conversion of MDA of at least 95%, based on the amount of MDA used.