A PROCESS FOR THE PREPARATION OF A SILVER-CONTAINING CATALYST

The invention relates to a process for the preparation of a silver-containing catalyst suitable for the oxidation of ethylene to ethylene oxide which comprises a) mixing alumina with a tin compound and with an alkali metal compound, b) calcining the mixture to obtain an alkali-enriched and tin-conta...

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Bibliographische Detailangaben
1. Verfasser:	BOXHOORN, GOSSE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to a process for the preparation of a silver-containing catalyst suitable for the oxidation of ethylene to ethylene oxide which comprises a) mixing alumina with a tin compound and with an alkali metal compound, b) calcining the mixture to obtain an alkali-enriched and tin-containing alumina carrier, c) applying a silver compound to the alumina carrier and converting said silver compound to metallic silver. The catalyst has a high activity, a high selectivity combined with a very high stability.