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US 12,415,775 B2Granted
Process for the preparation of hexamethylenediamine by hydrogenation of adiponitrile with reduced formation of diaminocyclohexane
AssigneeBASF SE
InventorsMaxime Huchede, Sandra Chouzier
Life of this patent
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Abstract
The present invention relates to a process for the preparation of hexamethylenediamine by hydrogenation of adiponitrile in the presence of a Raney nickel catalyst, wherein a Raney nickel catalyst modified by treatment with carbon monoxide or carbon dioxide in a liquid medium is used.
Claims12
A process for the preparation of hexamethylenediamine by hydrogenation of adiponitrile in the presence of a Raney nickel catalyst, wherein the Raney nickel catalyst is modified by treatment with carbon monoxide or carbon dioxide in a liquid medium.
Dependencies are inferred from the claim text.