The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2008
Filed:
Feb. 18, 2004
Lukas Von Hippel, Alzenau, DE;
Robert Weber, Euskirchen, DE;
Martin Bewersdorf, Gelnhausen, DE;
Ernst Gail, Egelsbach, DE;
Helmut Schwarz, Berlin, DE;
Lukas Von Hippel, Alzenau, DE;
Robert Weber, Euskirchen, DE;
Martin Bewersdorf, Gelnhausen, DE;
Ernst Gail, Egelsbach, DE;
Helmut Schwarz, Berlin, DE;
Degussa AG, Düsseldorf, DE;
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.