Process for regenerating silver-containing carrier catalysts for the preparation of ethylene oxide

US4529714A · kind A · utility

Assignee

• BASF SE

Inventors

• Wolf D. Mross · Bischofswerda, DE
• Matthias Schwarzmann · Schifferstadt, DE
• Juergen Plueckhan · Bischofswerda, DE
• Juergen Dehler · Forchheim, DE

Key dates

• Filing date: Feb 10, 1984
• Grant date: Jul 16, 1985
• Expiry date: Feb 10, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/584
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The subject invention relates to a process for regenerating silver-containing carrier catalysts used in the preparation of ethylene oxide which comprises treating a deactivated catalyst with a solution comprising a potassium, rubidium, or cesium compound and a reducing agent. The subject process provides improved catalyst regeneration.