HCN by catalytic ammoxidation of crude acetonitrile
AssigneeThe Standard Oil Company
InventorsDev D. Suresh, Mark C. Cesa, Tai C. Yang, Robert K. Grasselli, Mark R. Bruce, Michael J. Seely, Maria S. Friedrich, Robert A. Dubbert
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Abstract
A process of producing hydrogen cyanide from crude acetonitrile comprising contacting the crude acetonitrile with an ammoxidation catalyst at an elevated temperature in the presence of an oxygen containing gas and ammonia. Preferably, the process is performed in the absence of propylene.
Claims17
A process for the production of hydrogen cyanide directly from crude acetonitrile containing hydrocyanic acid is an impurity comprising contacting in the vapor state crude acetonitrile at an elevated temperature with an ammoxidation catalyst in the presence of oxygen containing gas and ammonia to produce hydrogen cyanide.
The process for the production of hydrogen cyanide directly from crude acetonitrile comprising catalytically reacting in the vapor state propylene, ammonia and air over an ammoxidation catalyst to produce acrylonitrile and crude acetonitrile, separating the acrylonitrile from the crude acetonitrile, feeding the crude acetonitrile to a reactor containing an ammoxidation catalyst and contacting the crude acetonitrile with the ammoxidation catalyst in the presence of air and ammonia to produce hydrogen cyanide.
Dependencies are inferred from the claim text.