Nitrogen in oxidation

Results of Hydrogen Chemisorption/Pulse Reoxidation Measurements over Activated Silica-Supported Cobalt Catalysts Calcined at 350°C Using either Flowing Air or 5% Nitric Oxide in Nitrogen... 

Figure 1.18 Survey and expanded V 2p and Mo 3d XPS spectra form a Mo-V-Sb-Nb mixed oxide catalyst after calcination in nitrogen (a) and air (b) atmospheres [145]. The data indicate a lesser degree of oxidation in nitrogen, a result that was correlated with the promotion of reactions leading to the production of propene and acrylic acid rather than acetic acid, the main product obtained with the fully oxidized sample. (Reproduced with permission from Elsevier.)...

Mixtures of nitric oxide in nitrogen were obtained from Matheson Gas Products. High concentrations (250 ppm), factory analyzed to 5%, were diluted with air using standard gas mixing techniques. NO concentrations were calculated from N0 and air flow rates. 

There were experiments [158] studying formation of nitric oxides in nitrogen plasma jet with injected oxygen, oxygen-nitrogen mixture and water. In this case, NO concentration in nitrous gases reached 8%. 

Table II, Changes in PCS Characteristics After Oxidation in Nitrogen...

Proposed Mechanism of PCS Oxidation in Nitrogen. From the results just discussed, the oxidation of PCS by heating to 500 °C in a nitrogen... 

Oxidation of n-alkanes by Co acetate in acetic acid occurs with a remarkable regioselectivity (rs) at the alkyl acetate as the major product in anaerobic conditions, and 2-alkanone in the presence of oxygen (equations 233 and 234). Cyclohexane is readily oxidized in nitrogen by Co(OAc)3 in acetic acid to mainly cyclohexyl acetate and 2-acetoxycyclo-hexanone. In the presence of oxygen and a high cobalt concentration, adipic acid is the major product formed (equation 235). Oxidation of adamantane by Co(OAc)s and TFA in AcOH preferentially occurs at the tertiary positions, producing 1-adamantyl acetate as the major product. ... 

Nakajima, T., Oda, H., Kusumoto, S., and Nogami, H. (1980). Biological effects of nitrogen dioxide and nitric oxide. In Nitrogen Oxides and Their Effects on Health (S. D. Lee, ed.), pp. 121-141. Ann Arbor Science, Ann Arbon, Michigan. 

Hughes, D.L., Mohammed, M.Y. and Pickett, C.J. Metallo-oxides in nitrogen fixation J.Chem.Soc., Chem.Commun., (1988), 1481-1482... 

Figure 26.5. Yield of styrene and selectivities of benzene, toluene, and styrene oxide in nitrogen and nitrous oxide atmospheres as a function of time on stream. Reaction temperature, 623 K Weight Hourly Space Velocity (WHSV) of EB, 1 N2/N2O flow rate, 1200h 20 VOX/AI2O3. Solid symbols = under N2O flow open symbols = under N2 flow. Adapted from Ref. 26.

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