Environmentally friendly process for the hydrogenation of dinitriles
The present invention concerns the hydrogenation of aliphatic or alicyclic dinitriles to produce diamines and/or aminonitriles, e.g. adiponitrile to produce hexamethylenediamine and/or 6-aminocapronitrile. Process for converting a dinitrile to a diamine and optionally an aminonitrile, in which a Gro...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
23.04.2002
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Online Access | Get full text |
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Summary: | The present invention concerns the hydrogenation of aliphatic or alicyclic dinitriles to produce diamines and/or aminonitriles, e.g. adiponitrile to produce hexamethylenediamine and/or 6-aminocapronitrile.
Process for converting a dinitrile to a diamine and optionally an aminonitrile, in which a Group VIII element catalyst is treated with a modifier either before or during a substantially solvent-free hydrogenation reaction in which the dinitrile is contacted with hydrogen in the presence of the catalyst. |
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