DE2736070

DE2736070

A process for the preparation of ethylene glycol by the vapor phase hydrogenation of oxalate esters, such as a dibutyl oxalate, at elevated temperatures and at relatively low hydrogen pressures in the presence of a suitable hydrogenation catalyst, such as a copper chromite catalyst, while minimizing...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZEHNER, LEE RANDALL, MEDIA, PA., US, LENTON, ROBERT WARREN, GLENOLDEN, PA., US
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:A process for the preparation of ethylene glycol by the vapor phase hydrogenation of oxalate esters, such as a dibutyl oxalate, at elevated temperatures and at relatively low hydrogen pressures in the presence of a suitable hydrogenation catalyst, such as a copper chromite catalyst, while minimizing the hydrogenolysis of the glycol and other side reactions and maximizing the hydrogenation catalyst activity.