Silberkatalysator zur Oxidation von Ethylen zu Ethylenoxid und Verfahren zur Herstellung von Ethylenoxid

The invention relates to a silver catalyst having a silver content of 10 to 25% by mass for the partial oxidation of ethylene with molecular oxygen in the gas phase to give ethylene oxide and a process for the preparation of ethylene oxide with this catalyst. The catalyst, in which the silver is pre...

Full description

Saved in:
Bibliographic Details
Main Authors KYEWSKI, DIETMAR, 4358 HALTERN, DE, POSPIECH, JUERGEN, 4370 MARL, DE, KLOPRIES, BURKHARD., 4250 BOTTROP, DE, DIBOWSKI, WILMA, 4370 MARL, DE, METZ, HARALD., 4370 MARL, DE
Format Patent
LanguageGerman
Published 15.12.1994
Edition5
Subjects
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:The invention relates to a silver catalyst having a silver content of 10 to 25% by mass for the partial oxidation of ethylene with molecular oxygen in the gas phase to give ethylene oxide and a process for the preparation of ethylene oxide with this catalyst. The catalyst, in which the silver is present in particles on a macroporous ceramic support, surpasses the comparable catalysts of the prior art as a result of increased selectivity (with high activity) and/or a more favourable ageing behaviour. The process for the preparation of ethylene oxide is distinguished by an improved economic efficiency. The average diameter of the silver particles is less than 0.4 times the number-average pore diameter of the untreated support.
Bibliography:Application Number: DE19934311608