Vapour Phase Synthesis of 2-Methylpyridine and 4-Methylpyridine Over Potassium Salts of 12-Tungstophosphoric Acid
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Title |
Vapour Phase Synthesis of 2-Methylpyridine and 4-Methylpyridine Over Potassium Salts of 12-Tungstophosphoric Acid
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Creator |
Senapati, Rabi Narayan
Pathak, Devendra D Dutta, Pashupati Agarwalla, Hridesh Sahu, Gajanan |
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Subject |
Acetaldehyde
Dehydrocyclization Heteropoly acid Insecticides |
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Description |
814-820
Vapor phase dehydrocyclization reaction of acetaldehyde and ammonia was investigated over K salts of 12-tungstophosphoric acid as catalysts in a continuous flow fixed bed reactor at 350–450℃. The yield of 2-methylpyridine and 4-methylpyridine were found to be in the range of 38.0–64.5%. The 2-methylpyridine and 4-methylpyridine are used for the preparation of insecticides, poultry drugs, cattle drugs and anti-tuberculosis drugs, veterinary analgesics etc. respectively. The reaction conditions such as temperature, contact time, and molar ratio for achieving optimal yield with respect to 2-methylpyridine and 4-methylpyridine were discussed. Catalysts were characterized through BET surface area, FT-IR, XRD and TGA. NH3-TPD studies exhibit the moderate acidity. The morphology of the catalysts was also studied by FESEM. |
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Date |
2022-08-03T05:06:51Z
2022-08-03T05:06:51Z 2022-08 |
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Type |
Article
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Identifier |
0022-4456 (Print); 0975-1084 (Online)
http://nopr.niscpr.res.in/handle/123456789/60254 https://doi.org/10.56042/jsir.v81i08.55461 |
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Language |
en
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Publisher |
NIScPR-CSIR,India
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Source |
JSIR Vol.81(08) [AUG 2022]
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