Microwave assisted heterogeneous vapor-phase oxidation of 3-picoline to nicotinic acid over vanadium–titanium oxide catalytic system

Alkayeva, Yevgeniya; Gibadullin, Ruslan; Merakhovich, Maksim; Abdurakhmanov, Alexander; Holubyeva, Anastasiya; Шутилов, А. А.; Зенковец, Г. А.

doi:10.1016/j.apcata.2014.11.026

Cited by 6 publications

(1 citation statement)

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“…The presence of water also had a positive effect on the degree of conversion of the raw material, up to a maximum yield of 55% at 330 • C, with optimization of the raw material composition and reaction parameters. Additionally, an interesting solution was to carry out the process in the gas phase using a microwave reactor [72]. The process used a catalyst system with 20% V 2 O 5 and 80% TiO 2 that was heated with microwaves to achieve 95% selectivity to NA at a much lower temperature of 180 • C. This method also lowered energy consumption.…”

Section: Oxidation Of 3-methylpyridine In the Gas Phasementioning

confidence: 99%

Methods to Produce Nicotinic Acid with Potential Industrial Applications

2022

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Nicotinic acid is a naturally occurring pyridine carboxylic acid, contained in vitamin PP, an essential nutrient for humans and animals, and used as an antipelagic agent. Nicotinic acid can be made from tryptophan by plants and animals but is usually not completely bioavailable. Industrially, nicotinic acid is produced mainly by oxidation of 5-ethyl-2-methylpyridine with nitric acid. One of the by-products of the process is nitrous oxide, a gas that is difficult to recycle and manage, with a greenhouse effect 300 times stronger than CO2. A new technology for the industrial production of nicotinic acid is undoubtedly necessary to meet the needs of green chemistry and not burden the environment. We carried out a literature review on ecological methods to produce nicotinic acid from commercially available raw materials such as 3-methylpyridine and 5-ethyl-2-methylpyridine, especially focusing on those methods with potential industrial applications.

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Section: Oxidation Of 3-methylpyridine In the Gas Phasementioning

confidence: 99%