Patent ID: 7608719
Filing Date: 2009-10-27
Classification: B01J,C07D

Abstract:
1. 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.