Hydrogenation process

Hydrogenation process

Aliphatic dinitriles are hydrogenated to aliphatic diamines, for example adiponitrile or 1,4-dicyano-butene are converted to hexamethylene diamine, by heating with hydrogen in the presence of a reduced cobalt borate catalyst. The catalyst is obtained by heating precipitated cobalt borate in the pres...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WADDAN, DHAFIR YUSUF
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Zusammenfassung:Aliphatic dinitriles are hydrogenated to aliphatic diamines, for example adiponitrile or 1,4-dicyano-butene are converted to hexamethylene diamine, by heating with hydrogen in the presence of a reduced cobalt borate catalyst. The catalyst is obtained by heating precipitated cobalt borate in the presence of hydrogen, and is made more active by treating, prior to reduction, with an aqueous solution of an alklai, especially an alkali metal carbonate.