Process for the manufacture of cyanogen

US3997653A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Wilhelm Riemenschneider · Frankfurt am Main, DE
• Peter Wegener · Königstein, DE

Key dates

• Filing date: Jun 4, 1975
• Grant date: Dec 14, 1976
• Expiry date: Jun 4, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01C3/003
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Cyanogen is produced by catalytic oxidation of hydrogen cyanide with oxygen in the presence of a catalyst solution. The catalyst solution consists of aliphatic ethers or of nitriles and copper(II)nitrate and may further contain up to 20 % by weight of water.