Method of producing unsaturated nitriles
AssigneeThe Badger Company, Inc.
InventorHarold R. Sheely
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Abstract
A method of producing unsaturated nitriles by reaction of an unsaturated hydrocarbon with ammonia and oxygen in a reactor having a fluidized catalyst bed comprising a regeneration zone and a reaction zone, characterized by introducing between about 3 percent and about 90 percent of the total amount of ammonia supplied to the reaction to the regeneration zone together with oxygen and introducing the remainder of the ammonia to the reaction zone together with the hydrocarbon feed.
Claims14
A process for producing an unsaturated nitrile by the reaction of an unsaturated hydrocarbon selected from the class consisting of mono-olefinically unsaturated alkenes having at least 3 carbon atoms, and cycloalkenes, alkyl and alkenyl substituted benzenes and naphthalenes with ammonia and oxygen in a reactor containing a fluidized bed of an ammoxidation catalyst characterized by a catalyst regeneration zone and a reaction zone located above the said regeneration zone, said process comprising the steps of introducing all of the unsaturated hydrocarbon supplied to said reaction into said reaction zone, introducing said oxygen into said regeneration zone, introducing between about 3 percent and about 90 percent of the total amount of ammonia supplied to said reaction to said regeneration zone and introducing the remainder of said total amount of ammonia to said reaction zone, maintaining a reaction temperature between about 500.degree. and 1000.degree.F in said reaction zone, and passing said hydrocarbon, ammonia and oxygen upwardly through said reaction zone.
A process for producing an unsaturated nitrile by the reaction of an unsaturated olefin with ammonia and oxygen in a reactor containing a fluidized bed of an ammoxidation catalyst characterized by a catalyst regeneration zone and a reaction zone located above the said regeneration zone, said olefin being a mono-olefin having the structure ##EQU2## where R is hydrogen or methyl, said process comprising the steps of introducing all of said unsaturated olefin into said reaction zone, introducing all of said oxygen into said regeneration zone, introducing between 3 and about 90 percent of the total amount of ammonia supplied to said reaction to said regeneration zone and introducing the remainder of said total amount of ammonia to said reaction zone, maintaining a reaction temperature between about 500.degree. and 1000.degree.F in said reaction zone, and passing said olefin, ammonia and oxygen upwardly through said reaction zone for reaction in the presence of said catalyst.
In a process for producing an unsaturated nitrile by reacting a mono-olefinically unsaturated olefin with ammonia and oxygen in a reactor containing a fluidized bed of an ammoxidation catalyst characterized by a catalyst regeneration zone and a reaction zone maintained at a temperature between about 500.degree. and 1000.degree.F located above said regeneration zone, said olefin being propylene or isobutylene, said oxygen being introduced to said regeneration zone and said olefin being introduced only to said regeneration zone, the improvement comprising introducing about 3 to about 90 percent of the total amount of ammonia supplied to said reaction to said regeneration zone and introducing the remainder of said total amount of ammonia to said reaction zone.
Dependencies are inferred from the claim text.