Ammoxidation of a mixture of alcohols to a mixture of nitriles to acetonitrile and HCN
AssigneeThe Standard Oil Company
InventorsSanjay P. Godbole, Michael J. Seely, Dev D. Suresh
Life of this patent
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Abstract
A process for increasing the yield of one or both co-products HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a mixture comprising one or more alcohols selected from crude methanol, crude ethanol or crude propanol, ammonia and air into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, alcohol, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.
Claims21
A process for adjusting the relative amounts of hydrogen cyanide and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propane and propylene, ammonia, air and an alcohol mixture comprising methanol and a second alcohol comprising ethanol, propanol or mixtures thereof, in a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbons, alcohols, ammonia, and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide, and acetonitrile, and recovering acrylonitrile, hydrogen cyanide, and acetonitrile from the reaction, where the weight ratio of methanol to second alcohol in the alcohol mixture is adjusted depending on the relative amounts of hydrogen cyanide and acetonitrile desired to be produced.
A process for increasing the yield of co-products HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, an alcohol mixture comprising methanol and ethanol in a weight ratio of about 99:1 to about 1:99, ammonia and air into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, alcohol mixture, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.
A process for increasing the yield of one or both co-products HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a mixture comprising one or more alcohols selected from crude methanol, crude ethanol or crude propanol, ammonia and air into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, alcohol, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.
A process for increasing the yield of one or both co-products HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a crude alcohol comprising a crude alcohol mixture comprising at least one C1 to C4 alcohols, ammonia and air into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, alcohol, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.
Dependencies are inferred from the claim text.