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Ammoxidation of 3-picoline over V2O5/MgF2 catalysts: Correlations between nicotinonitrile yield and O2 and NH3 chemisorption properties

Paper ID Volume ID Publish Year Pages File Format Full-Text
52242 46867 2008 6 PDF Available
Title
Ammoxidation of 3-picoline over V2O5/MgF2 catalysts: Correlations between nicotinonitrile yield and O2 and NH3 chemisorption properties
Abstract

V2O5/MgF2 catalysts with varying vanadia contents (V/Mg = 0.02–0.13) were prepared by impregnation and tested towards ammoxidation of 3-picoline to nicotinonitrile. The solids were characterised by BET-surface area determination, high temperature oxygen chemisorption and ammonia chemisorption. Both the O2 and NH3 uptakes were found to increase continuously with increase in V/Mg molar ratio of the catalysts. The catalytic activity changes in a similar fashion, while the nicotinonitrile selectivity is varied over a small range. Thus, direct correlations between the yield of nicotinonitrile and O2 and NH3 uptakes could be obtained. The catalyst with the highest V/Mg molar ratio displayed the best result giving 96% selectivity of nicotinonitrile at 91% conversion of 3-picoline.

Keywords
V2O5/MgF2 catalysts; Ammoxidation of 3-picoline; High temperature oxygen chemisorption; Ammonia chemisorption
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Ammoxidation of 3-picoline over V2O5/MgF2 catalysts: Correlations between nicotinonitrile yield and O2 and NH3 chemisorption properties
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 5, 20 March 2008, Pages 715–720
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
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Full-text PDF Download
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