Calculation and Analysis from Macro-Acid Absorption Rate to Micro-Oxidation Rate

In order to determine reliability of analyzed data of NO oxidation rate in production of nitric acid,the sample analysis method of NO oxidation rate was discussed from aspects of analytical procedure,analytical principle and analytical calculation etc.,through the multi-item of practical operation parameters,as an example the calculating process and calculating method for the oxidation rate were given.The result indicates when analyzing the sample,if using the mass fraction to express the concentration of nitrogen compound can't calculate oxidation rate,but can decide whether the analyzing result is correct;in case the concentration of oxygen was expressed by mass fraction,the sample shall be taken when the inlet concentration is higher than outlet concentration,otherwise the sample analysis tolerance or the delay phenomena exists.