Cylindrically formed catalyst for the oxychlorination of ethylene

US5166120A · kind A · utility

Assignees

• Degussa AG · DE
• Wacker Chemie AG · DE

Inventors

• Klaus Deller · Großkrotzenburg, DE
• Helmfried Krause · Rodenbach, DE
• Ludwig Schmidhammer · Haiming, DE
• Willibald Dafinger · Zweibrücken, DE

Key dates

• Filing date: Jun 6, 1991
• Grant date: Nov 24, 1992
• Expiry date: Jun 6, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J35/55
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A carrier catalyst containing copper and alkali ions on an annular carrier of surface-active material is defined by the dimensions of the carrier body and the porosity of the finished catalyst. Its total pore volume is 0.6-1.0 ml/g, pores smaller than 4 nm diameter are not present, pores of 8-20 nm diameter constitute at least 80% of the total pore volume and the remainder consists of macropores with a diameter greater than 20 nm (i.e., up to 200 nanometers). The catalyst is suitable for the production of 1,2-dichloroethane by means of the oxychlorination of ethylene.