Chemistry of inorganic compounds – Nitrogen or compound thereof – Carbon containing
Reexamination Certificate
2008-09-30
2008-09-30
Langel, Wayne (Department: 1793)
Chemistry of inorganic compounds
Nitrogen or compound thereof
Carbon containing
C502S200000, C502S313000, C502S330000, C502S331000
Reexamination Certificate
active
10542215
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.
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Bewersdorf Martin
Gail Ernst
Hippel Lukas Von
Schwarz Helmut
Weber Robert
Degussa - AG
Langel Wayne
Smith Gambrell & Russell
Weilacher Robert G.
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