Hydrogen cyanide synthesis process

Details Hydrogen cyanide synthesis process Hydrogen cyanide synthesis process

2005-12-27

2005-12-27

Silverman, Stanley S. (Department: 1754)

Chemistry of inorganic compounds

Nitrogen or compound thereof

Carbon containing

Reexamination Certificate

active

06979432

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[O2][O2+N2]=0.25⁢⁢to⁢⁢1.0;[CH4][NH3]=0.95⁢⁢to⁢⁢1.05;andwhere a molar ratio of ammonia to the sum of oxygen and nitrogen obeys the following relationship:in-line-formulae description="In-line Formulae" end="lead"?Y=m·X−a,in-line-formulae description="In-line Formulae" end="tail"?whereinY=[NH3][O2+N2]X=[O2][O2+N2]m=1.25 to 1.40; and a=0.05 to 0.14.

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