コバルトイオンを触媒とする亜硫酸ナトリウムの酸化反応速度とその応用

概要

論文の詳細を見る
It is necessary to know the reaction rate constant in order to measure the interfacial area and surface renewal rate of a gas-liquid contactor using chemical reaction. This method is called Danckwerts' plot and oxidation of sodium sulfite solution by oxygen gas is one of the applicable chemical reaction.　The sulfite oxidation rate using cobalt ion as catalyst has been determined from the absorption rate of oxygen by an inclined plate absorber.　The influences of the pH value and impurities of the solution upon rate constant have been studied.　The apparent activation energy is 11.6 Kcal/mol and rate constant is proportional to the concentration of the cobalt ion.　The interfacial area and surface renewal rate in a gas-liquid contactor have been measured by using the kinetic data of the sulfite oxidation reaction.　The contactor is a fully baffled agitation vessel with a turbine impeller.　The interfacial area is proportional to the 1.5 power of the impeller speed and independent of the gas load.　The surface renewal rate is linearly dependent on the impeller speed and increases only slightly with the gab load.
山形大学の論文
1973-01-20