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<p>Vapour Phase Synthesis of 2-Methylpyridine and 4-Methylpyridine Over Potassium Salts of 12-Tungstophosphoric Acid</p>

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Title Statement <p>Vapour Phase Synthesis of 2-Methylpyridine and 4-Methylpyridine Over Potassium Salts of 12-Tungstophosphoric Acid</p>
 
Added Entry - Uncontrolled Name Senapati, Rabi Narayan; CSIR-Central Institute of Mining & Fuel Research, Dhanbad 828 108, Jharkhand, India
Pathak, Devendra Deo; Department of Applied Chemistry, IIT-ISM, Dhanbad 826 004, Jharkhand India
Dutta, Pashupati ; CSIR-Central Institute of Mining & Fuel Research, Dhanbad 828 108, Jharkhand, India
Agarwalla, Hridesh ; CSIR-Central Institute of Mining & Fuel Research, Dhanbad 828 108, Jharkhand, India
Sahu, Gajanan ; CSIR-Central Institute of Mining & Fuel Research, Dhanbad 828 108, Jharkhand, India
 
Uncontrolled Index Term Acetaldehyde, Dehydrocyclization, Heteropoly acid, Insecticides
 
Summary, etc. <p>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. NH<sub>3</sub>-TPD studies exhibit the moderate acidity. The morphology of the catalysts was also studied by FESEM.</p>
 
Publication, Distribution, Etc. Journal of Scientific and Industrial Research (JSIR)
2022-08-05 17:01:39
 
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http://op.niscair.res.in/index.php/JSIR/article/view/55461
 
Data Source Entry Journal of Scientific and Industrial Research (JSIR); ##issue.vol## 81, ##issue.no## 08 (2022): Journal of Scientific and Industrial Research
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/JSIR/article/download/55461/465579840
http://op.niscair.res.in/index.php/JSIR/article/download/55461/465579841