Results 221 to 230 of about 68,582 (266)
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Journal of Analytical Chemistry, 2004
A spectrophotometric procedure is developed for the simultaneous determination of ammonia, NO, and NO2 in the reaction products of the catalytic oxidation of ammonia under industrial conditions. Samples are taken from the reactor, and the analysis is made at 250°C. A multiple linear regression is used for the calibration.
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A spectrophotometric procedure is developed for the simultaneous determination of ammonia, NO, and NO2 in the reaction products of the catalytic oxidation of ammonia under industrial conditions. Samples are taken from the reactor, and the analysis is made at 250°C. A multiple linear regression is used for the calibration.
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2008
The biological nitrogen cycle is a complex interplay of many microorganisms. In the past, oxidation of the inorganic nitrogen compound ammonia by the ammonia oxidizing bacteria was thought to be restricted to oxic environments, and the metabolic flexibility of these organisms seemed to be limited.
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The biological nitrogen cycle is a complex interplay of many microorganisms. In the past, oxidation of the inorganic nitrogen compound ammonia by the ammonia oxidizing bacteria was thought to be restricted to oxic environments, and the metabolic flexibility of these organisms seemed to be limited.
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[Effect of Free Ammonia on Ammonia Escape During an Ammonia Oxidation Process].
Huan jing ke xue= Huanjing kexue, 2017This study used short process nitrification sludge to investigate the effect of high free ammonia (FA) on ammonia escape during ammonia oxidation. A sequencing batch reactor (SBR) was used to study the ammonia escape process under different FA concentrations.
Sun, Hong-Wei +4 more
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The kinetics of the oxidation of ammonia by nitrous oxide
Australian Journal of Chemistry, 1964Ammonia is oxidized by nitrous oxide smoothly and homogeneously at temperatures between 658 and 730° and total pressures up to 250 mm. The products of reaction, nitrogen, water, and hydrazine are accounted for by a free-radical mechanism initiated by oxygen atoms which result from the thermal decomposition of nitrous oxide.
TN Bell, JW Hedger
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Catalytic Oxidation of Ammonia
Russian Chemical Reviews, 1976Data on the catalytic properties of various substances (metals, their alloys, simple and complex oxides, and zeolites containing metal cations) in the oxidation of ammonia are described systematically and reviewed. The kinetics and mechanism of the reaction are discussed and the factors determining the activity and selectivity of the catalysts are ...
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The Commercial Oxidation of Ammonia
Journal of Industrial & Engineering Chemistry, 1920openaire +1 more source