Hydrogen cyanide synthesis process

US6743407B2 · kind B2 · utility

Assignee

• ROEHM GMBH & CO. KG · DE

Inventors

• Thomas Schaefer · Liestal, CH
• Hermann Siegert · Weiterstadt, DE

Key dates

• Filing date: Jul 13, 2001
• Grant date: Jun 1, 2004
• Expiry date: Sep 24, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01C3/0212
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for the production of hydrogen cyanide is provided, wherein hydrogen cyanide is synthesized by reacting methane or methane-containing natural gas, ammonia and oxygen-enriched air or oxygen in the presence of a catalyst comprising platinum or a platinum alloy; wherein the reactants are present in the following molar ratios where a molar ratio of ammonia to the sum of oxygen and nitrogen obeys the following relationship:Y=m·X−a,wherein m=1.25 to 1.40; and a 0.05 to 0.14.