Process for the production of hydrogen cyanide by the BMA process and catalyst for the implementation therefor

US7429370B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Lukas von Hippel · Alzenau, DE
• Robert Weber · Fullerton, US
• Martin Bewersdorf · Gelnhausen, DE
• Ernst Gail · Egelsbach, DE
• Helmut Schwarz · Tübingen, DE

Key dates

• Filing date: Feb 18, 2004
• Grant date: Sep 30, 2008
• Expiry date: Apr 24, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01C3/0229
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to an improvement to the BMA process for the production of hydrogen cyanide from methane and ammonia in the presence of a platinum-containing catalyst. The problem of sooting, and thus the decrease in activity, of the catalysts can be reduced, or the activity increased, in that the catalyst is doped with an element from the series Cu, Ag, Au, Pd and W. The doping is preferably in the range of 0.01 to 20 mole % doping element, based on Pt.