Thermally stable imidazole/heteropoly acid composite as a heterogeneous catalyst for m-xylene ammoxidation
Sign Up to like & getrecommendations! Published in 2021 at "Research on Chemical Intermediates"
DOI: 10.1007/s11164-020-04342-1
Abstract: Ammoxidation of m -xylene is evaluated in the presence of a customized heteropoly acid catalyst as an imidazole/molybdovanadophosphoric acid (imidazole/PMoV). Imidazole is employed to maintain its heterogeneous phase during the ammoxidation reaction and to provide… read more here.
Keywords: pmov; imidazole pmov; xylene; heteropoly acid ... See more keywords
Physicochemical and catalytic properties of over- and low-exchanged Mo‒ZSM-5 ammoxidation catalysts
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Papers"
DOI: 10.1007/s11696-018-0617-1
Abstract: A series of Mo/ZSM-5 catalysts prepared by solid-state ion exchange at different Mo/Al molar ratios were characterized and tested in ethane and ethylene ammoxidation into acetonitrile. It has been concluded that the low-exchanged solid (Mo/Al = 0.2)… read more here.
Keywords: ammoxidation; properties low; physicochemical catalytic; low exchanged ... See more keywords
Understanding the role of Al2O3-ZrO2 mixed oxides as support for vanadium catalysts for the selective ammoxidation of o-chlorotoluene to o-chlorobenzonitrile
Sign Up to like & getrecommendations! Published in 2021 at "Molecular Catalysis"
DOI: 10.1016/j.mcat.2021.111885
Abstract: Abstract o-Chlorotoluene (o-CT) ammoxidation to prepare o-chlorobenzonitrile (o-CBN) was investigated on Al2O3-ZrO2 supported V2O5 catalysts in the temperature range of 360 to 420 °C. A set of vanadium oxide supported on mixed oxides with varying its… read more here.
Keywords: al2o3 zro2; ammoxidation; chlorotoluene; mixed oxides ... See more keywords
Improvement of the conventional preparation methods in Co/BEA zeolites: Characterization and ethane ammoxidation
Sign Up to like & getrecommendations! Published in 2019 at "Solid State Sciences"
DOI: 10.1016/j.solidstatesciences.2019.04.008
Abstract: Abstract Ethane ammoxidation into acetonitrile (AN) was successfully catalyzed by Co/BEA solids issued from improved preparation methods. The catalyst issued from the impregnation of [Co(NH3)6]2+ complex into BEA zeolite is very active in ethane ammoxidation… read more here.
Keywords: preparation methods; ethane; ethane ammoxidation; improvement conventional ... See more keywords
Continuous-Flow Ammoxidation of 2-Methylpyrazine to 2-Cyanopyrazine with High Space-Time Yield in a Microreactor
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DOI: 10.1021/acsomega.2c00039
Abstract: A microreactor (MR) with a vaporization microchamber and a sinusoidal wave microchannel was fabricated to synthesize 2-cyanopyrazine (CP) directly with an aqueous 2-methylpyrazine (MP) solution. A continuous-flow process with high space-time yield was achieved under… read more here.
Keywords: space; time yield; ammoxidation; yield ... See more keywords
High Nitrile Yields of Aerobic Ammoxidation of Alcohols Achieved by Generating •O2- and Br• Radicals over Iron-Modified TiO2 Photocatalysts.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c07061
Abstract: Catalytic ammoxidation of alcohols into nitriles is an essential reaction in organic synthesis. While highly desirable, conducting the synthesis at room temperature is challenging, using NH3 as the nitrogen source, O2 as the oxidant, and… read more here.
Keywords: yields aerobic; high nitrile; nitrile yields; ammoxidation alcohols ... See more keywords
Designing Multifunctionality into Single Phase and Multiphase Metal-Oxide-Selective Propylene Ammoxidation Catalysts
Sign Up to like & getrecommendations! Published in 2018 at "Catalysts"
DOI: 10.3390/catal8030103
Abstract: Multifunctionality is the hallmark of most modern commercial heterogeneous catalyst systems in use today, including those used for the selective ammoxidation of propylene to acrylonitrile. It is the quintessential principle underlying commercial catalyst design efforts… read more here.
Keywords: oxide selective; multifunctionality; metal oxide; ammoxidation ... See more keywords