Process for the production of heteroaromatic nitriles improved catalyst therefor and a process for the production of said improved catalyst
AssigneeJubilant Organosys Limited
InventorsPradeep K. Verma, Ashutosh Agarwal
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Abstract
A process for preparation of heteroaromatic nitrile from the corresponding alkyl pyridine is disclosed. The process comprises contacting the alkyl pyridine with ammonia and an oxygen source in the presence of a catalyst comprising an active component comprising of oxide of vanadium and antimony and a promoter provided on a support.
Claims17
A process for the preparation of cyanopyridines from the corresponding alkyl pyridine comprising contacting the alkyl pyridine with ammonia and an oxygen source in the presence of a catalyst comprising said catalyst comprising an active component comprising an oxide of vanadium and antimony and a promoter selected from one or more of chromium, molybdenum, cobalt and manganese oxides and any mixture thereof,
- wherein the molar ratio of vanadium:antimony:promoter is in the range of 1:0.1 to 0.9:0.1 to 0.5, said active component being supported on a low surface area catalyst support material consisting of alpha alumina with surface area less than 10 sq.m/gm,
- wherein the ratio of ammonia to oxygen source is in the range of 2 to 8:10 to 80, and
- wherein the catalyst performs without deviation in activity up to 1000 hours of continuous run.
A process for the preparation of cyanopyridines from the corresponding alkyl pyridine comprising contacting the alkyl pyridine with ammonia and air in the presence of a catalyst comprising said catalyst comprising an active component comprising an oxide of vanadium and antimony and a promoter selected from one or more of chromium, molybdenum, cobalt and manganese oxides and any mixture thereof,
- wherein the molar ratio of vanadium:antimony:promoter is in the range of 1:0.1 to less than 1.0:0.1 to 0.5, said active component being supported on a low surface area catalyst support material consisting of alpha alumina with surface area less than 10 sq.m/gm,
- wherein the ratio of ammonia to air is in the range of 2 to 8:10 to 80, and
- wherein the catalyst performs without deviation in activity up to 1000 hours of continuous run.
Dependencies are inferred from the claim text.